2AM73-HDJF10Wireless Monitor Headphones system

3 5 7 26 48 <DRH1744-A> Printed in China/Imprimé en Chine © 2023 AlphaTheta Corporation. All rights reserv ed. © 2023 AlphaTheta Corporation. Tous droits réservés. © AlphaTheta Corporation, 2023. Все права защищены. Informational Note for Customers in Japan Only. Note d’information pour les Clients Japonais seulement. Precautions for Use Précautions à l'utilisation Hinweise für den Gebrauch Precauzioni Voorzorgsmaatregelen Precauciones al usar Precauções ໷ٲཏݨңٻ Правила предосторожности при эксплуатации ໪ቂ᎙ሃ໳ჵ ቂֻௗ֦ ໪ቂٛ൰෇ขኡޚ໪ቂངಖ Wireless Monitor Headphones system Système de casque monitoring sans fil Kabelloses Monitor-Kopfhörersystem Sistema di cuffie monitor senza filo Draadloos monitorhoofdtelefoonsysteem Sistema inalámbrico de auriculares de supervisión Sistema sem fios para auscultadores de monitor ณጤᆀ᠚Շᐡقಜ Система беспроводных наушников для мониторинга ႇღ৭࿪ߓ঩Ⴜ࿾ For FAQs and other support information for this product, visit the above site. Pour les FAQ et autres informations de support sur ce produit, consultez le site ci-dessus. Häufig gestellte Fragen und weitere Support-Informationen für dieses Produkt finden Sie auf der oben genannten Seite. Per la sezione FAQ e altre informazioni di supporto per questo prodotto, visitare il sito indicato sopra. Bezoek de bovenstaande website voor vaak gestelde vragen en andere informatie over ondersteuning voor dit product. Para consultar las preguntas más frecuentes y otras informaciones de asistencia para este producto, visite el sitio indicado anteriormente. Para obter informações sobre as FAQs e outras informações de apoio relativas a este produto, consulte o site indicado acima. ԄሰҐ౱ޠࠣŇłŒᇅڐуМනၦଊȂ፝ആ೥пαᆪયȄ Ответы на часто задаваемые вопросы и другую дополнительную информацию о данном изделии см. на указанном выше сайте. ࣋቙ۨٛ൰٢ܿਈၳ࿏ञඝྊፀڕᄪႩˈขߺၳᇵຢ၃ዹȃ pioneerdj.com/support/ AT_001_all_01 6F, Yokohama i-Mark Place, 4-4-5 Minatomirai, Nishi-ku, Yokohama, Kanagawa 220-0012 JAPAN / JAPON ٛ൰ٛݓġĻġ፩࣭፟ዉ ڵ֋๊ඓġĻġijıijĴ೧ijኟIJ๊ ٛ൰ፍᄵ׭ᎳखġĻġٛ൰ࣙࢆʼnŅŋĮŇIJı ໍٛጚġĻġ ݓፐġĻġׁ๊ໄೋۅჟल׸༁Ⴀฏࡰၝହĵݺ಼ĵߣĶखġल׸ŪĮŎłœŌġőōłńņġķ௦ ᄁ༌ຟġĻġ ݓፐġĻġ፩࣭ຢࣴ༁٣೻ฏ௧ຐ࣋௸ĶijĴखਜ਼सො࣭ৗ፩ᄩķ௦ıIJܠኇ AT_001_Zhcn kġijıijĴġׁ๊ՇߟႪ࢞܌ཌྷȃ֋ฝྈ቏ȃ HDJ-F10 English Thank you for buying this Pioneer DJ product. Please read through these precautions for use so you will know how to operate your model properly. After you have finished reading the instructions, put them away in a safe place for future reference. What's in the box • Transmitter × 1 • 1.6 m (62.99”) straight cable × 1 • ø6.3 mm (ø1/4”) stereo plug adapter (threaded type) × 1 • USB charging cable (USB Type-C to USB Type-C) 0.5 m (19.69”) × 1 • 1 set of spare ear pads × 1 • Carry pouch × 1 • Quick Start Guide × 1 • Precautions for Use × 1 Warranty certificates for Europe and North America is included in the box. Features This product is a pair of headphones with an excellent sound quality, durability and functionality optimized for DJ-ing. Read Before Use (Important) CAUTION This product is evaluated in moderate and tropical climate condition. Operating Environment Operating environment temperature and humidity: +0 °C to +40 °C (+32 °F to +104 °F); less than 80 %RH (cooling vents not blocked) Do not install this unit in a poorly ventilated area, or in locations exposed to high humidity or direct sunlight (or strong artificial light) Informational Note for Customers in EU Only: Information for users on collection and disposal of old equipment and used batteries Symbol examples for batteries Symbol for equipment Pb These symbols on the products, packaging, and/or accompanying documents mean that used electrical and electronic products and batteries should not be mixed with general household waste. For proper treatment, recovery and recycling of old products and used batteries, please take them to applicable collection points in accordance with your national legislation. By disposing of these products and batteries correctly, you will help to save valuable resources and prevent any potential negative effects on human health and the environment which could otherwise arise from inappropriate waste handling. For more information about collection and recycling of old products and batteries, please contact your local municipality, your waste disposal service or the point of sale where you purchased the items. These symbols are only valid in the European Union. For countries outside the European Union: If you wish to discard these items, please contact your local authorities or dealer and ask for the correct method of disposal. The graphical symbol placed on the product means alternating current. The graphical symbol placed on the product means direct current. The graphical symbol placed on the product means Class II equipment. Informational Note for Customers in U.S.A. and Canada Statement Only: WARNING/DISPOSAL OF UNIT Please do NOT attempt to change the battery yourself. If the battery has died and you do not want us to replace your battery, you should follow the disposal instructions below: • Never dispose of used batteries/electronics with ordinary solid wastes, since they contain toxic substances. • Always dispose of used batteries/electronics in accordance with the prevailing community regulations that apply to the disposal of batteries/electronics. If there are no local regulations concerning battery/electronics disposal, please dispose of the device in a waste bin for electronic devices. • Many electronics retailers now recycle batteries and other electronic devices at no charge. Check to see which ones in your area do so. To protect against hearing loss, set your equipment’s volume at a low setting, slowly increase it until you can hear it comfortably, and leave it there. Do not turn up the volume so high that you can’t hear what’s around you. Never use headphones while driving a car or other motorized vehicle, which is illegal in many areas, or in any other situation where hearing is needed for safety. Informational Note for Customers in U.S.A. Only: IMPORTANT NOTICE T…

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Rev 1/26/2023 AlphaTheta Corporation Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2023-12-07 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2AM73-HDJF10 AlphaTheta Corporation ("the applicant")certifies that the equipment for which authorization is sought is not“covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, (Applicantsignature) (Applicant printed name) Hiroaki Yoshida Rev 1/26/2023 AlphaTheta Corporation Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2023-12-07 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2AM73-HDJF10 AlphaTheta Corporation (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List(as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, (Applicant signature) (Applicant printed name) Hiroaki Yoshida

[AlphaTheta Corporation] [6F, Yokohama i-Mark Place, 4-4-5 Minatomirai, Nishi-ku, Yokohama, Kanagawa 220-0012 JAPAN] Date: [2023-11-27] Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: [2AM73-HDJF10] FRN: [0030197354] US Agent – Attestation Statement / Part 2.911(d)(7) [AlphaTheta Corporation]certifies, that as of [2023-11-27], we have designated FCC US Agent, LLC to accept service of process on our behalf for FCC ID: [2AM73-HDJF10]. [AlphaTheta Corporation], accepts to maintain an agent of service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission- related administrative or judicial proceeding involving the equipment, whichever is later. FCC US Agent, LLC, accepts as of the date of the filing of this application, the obligation of being the designated agent for the purpose of accepting service of process on behalf of [AlphaTheta Corporation] for FCC ID: [2AM73-HDJF10]. Designated Agent Information: Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708-571-3148 Email: [email protected] Sincerely, Company: [AlphaTheta Corporation] Designated Agent: FCC US Agent, LLC Company Representative: [Hiroaki Yoshida] Designated Agent Representative: Tim Payne Signature: Signature:

RF_160, Issue 03 Declaration of Authorization We Name: AlphaTheta Corporation Address: 6F, Yokohama i-Mark Place, 4-4-5 Minatomirai, Nishi-ku, Yokohama, Kanagawa 220-0012 JAPAN City: Yokohama State or Country: Japan Declare that: Name Representative of agent: Lisa Wang (1) Agent Company name: EMTEK (SHENZHEN) CO., LTD. Address: Bldg 69, Majialong Industry Zone, Nanshan District, City: Shenzhen Country China is authorized to apply for Certification of the following product(s): Product description: Wireless Monitor Headphones system Type designation: HDJ-F10 Trademark: AlphaTheta FCC ID: 2AM73-HDJF10 on our behalf. Date: 2023-11-22 Name: Hiroaki Yoshida Function: Manager Signature: Notes: (1): Required for FCC application (2): For FCC it must be the Grantee Code “owner” or the authorized agent.

FCC, Request for non-disclosure Date: 16-Jul-10 RF_501, Issue 6 Page 1 of 1 Company Name: AlphaTheta Corporation Address: 6F, Yokohama i-Mark Place, 4-4-5 Minatomirai, Nishi-ku, Yokohama, Kanagawa 220-0012 JAPAN City: Yokohama Country: JAPAN To: Telefication B.V., Dept. FCC TCB Edisonstraat 12A 6902 PK ZEVENAAR The Netherlands Subject: Request for confidentiality FCC ID: 2AM73-HDJF10 Reference number: ###### Dear FCC TCB, 1. Long-Term Confidentiality Pursuant to 47 CFR Section 0.459(a) & (b), we hereby requests non-disclosure and confidential treatment of the following materials submitted in support of FCC certification application: Bill(s) of Material Block Diagrams Operational Description Schematic Diagrams Tune-up Procedure Above materials contain secrets, proprietary and technical information, which would customarily be guarded from competitors under 47 CFR, section 0.457(d)(2). Disclosure or publication or any portion of this company confidential material to other parties could cause substantial competitive harm and provide unjustified benefits for competitors. 2. Short-Term Confidentiality (STC) Pursuant to Public Notice DA 04-1705 of the Commission’s policy, in order to comply with the marketing regulations in 47 CFR §2.803 and the importation rules in 47 CFR §2.1204, applicant hereby requests Short-Term Confidential treatment of the following materials (note 1): Internal Photos User’s Manual Test Set-up Photos External Photos Justification: The product is not on the market yet Planned Release Date STC: 2024-03-18 (notes 2, 3, 4, 5) Date: 2023-11-22 Name and signature of applicant: Name：Hiroaki Yoshida Signature： Notes: 1) A document or type of document can only have ONE type of confidentiality! 2) Short-Term confidentiality is in principle for 45 days from date of grant; it can be extended max 3 times (total time 180 days max.)! 3) FCC must be informed when marketing begins earlier. 4) Release takes place automatically thus extension must be requested in time. Telefication does not remind you of this! 5) Request for extension or for release must be received by Telefication at least 7 days before date of actual marketing or before expiration of the STC period

EUT EXTERNAL PHOTOGRAPHS ----------------The end----------------

EUT INTERNAL PHOTOGRAPHS SRD2.4G Module BT Antenna BT Module SRD2.4G Antenna SRD2.4G Antenna ----------------The end----------------

Report No.ENS2212190149W01003R Page 1 of 36 Ver.1.0 TEST REPORT Product Name ： Wireless Monitor Headphones system Model Number ： HDJ-F10 FCC ID ： 2AM73-HDJF10 Prepared fo r : AlphaTheta Corporation Address : 6F, Yokohama i-Mark Place, 4-4-5 Minatomirai, Nishi-ku, Yokohama, Kanagawa 220-0012 JAPAN Prepared by : EMTEK (SHENZHEN) CO., LTD. Address : Bldg 69, Majialong Industry Zone, Nanshan District, Shenzhen, Guan gdong, China Tel: (0755) 26954280 Fax: (0755) 26954282 Report Numbe r : ENS2212190149W01003R Date (s) of Tests : March 15, 2023 to March 15, 2023 Date of Issue : September 7, 2023 $二维码$ Report No.ENS2212190149W01003R Page 2 of 36 Ver.1.0 TABLE OF CONTENTS 1. TEST RESULT CERTIFICATION ............................................................................................................................................ 4 2. Description of Equipment Under Test ................................................................................................................................. 6 3. SAR Measurement System ................................................................................................................................................... 7 3.1 Definition of SpecificAbsorptionRate (SAR) ................................................................................................................. 7 3.2 SPEAG DASY System ................................................................................................................................................. 7 3.2.1 Robot .................................................................................................................................................................. 8 3.2.2 Probes ................................................................................................................................................................ 9 3.2.3 Data Acquisition Electronics (DAE) .................................................................................................................... 9 3.2.4 Phantoms ......................................................................................................................................................... 10 3.2.5 Device Holder ................................................................................................................................................... 11 3.2.6 System Validation Dipoles ................................................................................................................................ 11 3.2.7 Tissue Simulating Liquids ................................................................................................................................. 12 3.3 SAR System Verification ............................................................................................................................................ 14 3.4 SAR Measurement Procedure ................................................................................................................................... 15 3.4.1 Area & Zoom Scan Procedure ......................................................................................................................... 15 3.4.2 VolumeScan Procedure .................................................................................................................................... 15 3.4.3 Power Drift Monitoring ...................................................................................................................................... 16 3.4.4 Spatial Peak SAR Evaluation ........................................................................................................................... 16 3.4.5 SAR Averaged Methods ................................................................................................................................... 16 4. SARMeasurement Evaluation ............................................................................................................................................. 17 4.1 Applicable Standards ................................................................................................................................................. 17 4.2 EUT Testing Position .................................................................................................................................................. 17 4.2.1 Head&Body Exposure Conditions .................................................................................................................... 17 4.2.2 SAR Test Exclusion Evaluations ....................................................................................................................... 19 4.3 Tissue Verification ...................................................................................................................................................... 21 4.4 System Validation ....................................................................................................................................................... 21 4.5 System Verification ..................................................................................................................................................... 22 4.6 Maximum Output Power ............................................................................................................................................. 23 4.6.1 Maximum Conducted Power ............................................................................................................................ 23 4.6.2 Measured Conducted Power Result ................................................................................................................. 24 4.7 SAR Testing Results .................................................................................................................................................. 25 4.7.1 SAR Test Reduction Considerations ...........................................................................…

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. Test Laboratory: Shenzhen EMTEK Co.,Ltd.Date: 2023/3/15 System Check_H2450 DUT: Dipole 2450 MHz; Type:D2450V2; SN:927 Communication System: CW; Frequency: 2450 MHz;Duty Cycle: 1:1 Medium: H2450 Medium parameters used: f = 2450 MHz;σ=1.79S/m;ε r = 40.105;ρ= 1000 kg/m 3 AmbientTemperature：22.1°C; LiquidTemperature：21.9°C DASY5 Configuration: - Probe: EX3DV4 - SN3970; ConvF(8.06, 8.06, 8.06); Calibrated: 2022/4/18; - Sensor-Surface: 4mm (Mechanical Surface Detection) - Electronics: DAE4 Sn1418; Calibrated: 2022/3/24 - Phantom: ELI v5.0; Type: QDOVA002AA; Serial: TP:1231 - Measurement SW: DASY52, Version 52.8 (7); SEMCAD X Version 14.6.10 (7164) Pin=250mW/Area Scan (41x51x1):Interpolated grid: dx=2.000 mm, dy=2.000 mm Maximum value of SAR (interpolated) = 24.5 W/kg Pin=250mW/Zoom Scan (5x5x7)/Cube 0:Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 114.7 V/m; Power Drift = 0.14 dB Peak SAR (extrapolated) = 30.4 W/kg SAR(1 g) = 13.1 W/kg; SAR(10 g) = 6.10 W/kg Maximum value of SAR (measured) = 23.0 W/kg

Test Laboratory: Shenzhen EMTEK Co.,Ltd.Date: 2023/3/15 BT Communication System: BT ; Frequency: 2480 MHz;Duty Cycle: 1:1.2987 Medium: H2450 Medium parameters used: f = 2480 MHz;σ=1.833S/m;ε r = 40.33;ρ= 1000 kg/m 3 AmbientTemperature：22.1°C; LiquidTemperature：21.9°C DASY5 Configuration: - Probe: EX3DV4 - SN3970; ConvF(7.91, 7.91, 7.91); Calibrated: 2022/4/18; - Sensor-Surface: 4mm (Mechanical Surface Detection) - Electronics: DAE4 Sn1418; Calibrated: 2022/3/24 - Phantom: SAM; Type: QD000P40CD; Serial: TP:1794 - Measurement SW: DASY52, Version 52.8 (7); SEMCAD X Version 14.6.10 (7164) Back-High/Area Scan (8x9x1):Measurement grid: dx=10mm, dy=10mm Maximum value of SAR (measured) = 0.0115 W/kg Back-High/Zoom Scan (7x7x7)/Cube 0:Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 1.741 V/m; Power Drift = -0.09 dB Peak SAR (extrapolated) = 0.0170 W/kg SAR(1g)=0.0642W/kg;SAR(10g)=0.036W/kg Maximum value of SAR (measured) = 0.0102 W/kg Test Laboratory: Shenzhen EMTEK Co.,Ltd.Date: 2023/3/15 2.4G Communication System: SRD ; Frequency: 2480 MHz;Duty Cycle: 1:1 Medium: H2450 Medium parameters used: f = 2480 MHz;σ=1.833S/m;ε r = 40.33;ρ= 1000 kg/m 3 AmbientTemperature：22.1°C; LiquidTemperature：21.9°C DASY5 Configuration: - Probe: EX3DV4 - SN3970; ConvF(7.91, 7.91, 7.91); Calibrated: 2022/4/18; - Sensor-Surface: 4mm (Mechanical Surface Detection) - Electronics: DAE4 Sn1418; Calibrated: 2022/3/24 - Phantom: SAM; Type: QD000P40CD; Serial: TP:1794 - Measurement SW: DASY52, Version 52.8 (7); SEMCAD X Version 14.6.10 (7164) Back-High Ant1/Area Scan (8x9x1):Measurement grid: dx=10mm, dy=10mm Maximum value of SAR (measured) = 0.0125 W/kg Back-High Ant1/Zoom Scan (7x7x7)/Cube 0:Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 1.804 V/m; Power Drift = -0.17 dB Peak SAR (extrapolated) = 0.0130 W/kg SAR(1 g) = 0.0432 W/kg; SAR(10 g) = 0.0213 W/kg Maximum value of SAR (measured) = 0.0109 W/kg Test Laboratory: Shenzhen EMTEK Co.,Ltd.Date: 2023/3/15 2.4 Communication System: SRD ; Frequency: 2480 MHz;Duty Cycle: 1:1 Medium: H2450 Medium parameters used: f = 2480 MHz;σ=1.833S/m;ε r = 40.33;ρ= 1000 kg/m 3 AmbientTemperature：22.1°C; LiquidTemperature：21.9°C DASY5 Configuration: - Probe: EX3DV4 - SN3970; ConvF(7.91, 7.91, 7.91); Calibrated: 2022/4/18; - Sensor-Surface: 4mm (Mechanical Surface Detection) - Electronics: DAE4 Sn1418; Calibrated: 2022/3/24 - Phantom: SAM; Type: QD000P40CD; Serial: TP:1794 - Measurement SW: DASY52, Version 52.8 (7); SEMCAD X Version 14.6.10 (7164) Back-High Ant2/Area Scan (8x9x1):Measurement grid: dx=10mm, dy=10mm Maximum value of SAR (measured) = 0.00923 W/kg Back-High Ant2/Zoom Scan (7x7x7)/Cube 0:Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 1.607 V/m; Power Drift = -0.05 dB Peak SAR (extrapolated) = 0.0200 W/kg SAR(1 g) = 0.0353 W/kg; SAR(10 g) = 0.0164 W/kg Maximum value of SAR (measured) = 0.00848 W/kg

深圳市丰禾原电子科技有限公司 SUNITEC ENTERPRISE CO.,LTD. 1 Tester:Lite Mo Test data:2022.12.28 EA207(BT)Antenna SPEC 2 Product Appearance: 深圳市丰禾原电子科技有限公司 SUNITEC ENTERPRISE CO.,LTD. 3 Test equipment: 深圳市丰禾原电子科技有限公司 SUNITEC ENTERPRISE CO.,LTD. ETS‐Lindgren Antenna Measurement System Configuration 1.VECTOR NETWORK ANALYZER Agilent E5071c 2.Antenna Measurement System ETS‐Lindgren Antenna Measurement System 4 ANT Test Settings: (EA207) 深圳市丰禾原电子科技有限公司 SUNITEC ENTERPRISE CO.,LTD. 5 Electrical Characteristics: 深圳市丰禾原电子科技有限公司 SUNITEC ENTERPRISE CO.,LTD. Antenna Model NamePCB Layout Antenna Working Frequency Range2450+/-50MHz Impedance50Ω Max Efficiency(%)42.09%@2413MHz Max Gain(dBi)1.34dBi@2413MHz Frequency(MHz)Efficiency(%)Gain(dBi) 2402 41.0 01.28 2441 39.60 0.98 2480 36.990.50 6 3D Radiation Pattern : 深圳市丰禾原电子科技有限公司 SUNITEC ENTERPRISE CO.,LTD. 2402MHz 2441MHz2480MHz Thanks 2022/12/287

Report No. ENS2212190149W01001R Page 1 of 61 Ver.1.0 TEST REPORT Product Name ：Wireless Monitor Headphones system Model Number ： HDJ-F10 FCC ID ：2AM73-HDJF10 Prepared for : AlphaTheta Corporation Address : 6F, Yokohama i-Mark Place, 4-4-5 Minatomirai, Nishi-ku, Yokohama, Kana gawa 220-0012 JAPAN Prepared b y : EMTEK (SHENZHEN) CO., LTD. Address : Bldg 69, Majialong Industry Zone, Nanshan District, Shenzhen, Guan gdong, China Tel: (0755) 26954280 Fax: (0755) 26954282 Report Numbe r : ENS2212190149W01001R Date(s) of Tests : December 29, 2022 to March 19, 2023 Date of Issue : March 21, 2023 $二维码$ Report No. ENS2212190149W01001R Page 2 of 61 Ver.1.0 TABLE OF CONTENTS 1 TEST RESULT CERTIFICATION ............................................................................................................ 3 2 EUT TECHNICAL DESCRIPTION .......................................................................................................... 5 3 SUMMARY OF TEST RESULT ............................................................................................................... 6 4 TEST METHODOLOGY .......................................................................................................................... 7 4.1 GENERAL DESCRIPTION OF APPLIED STANDARDS .................................................................. 7 4.2 MEASUREMENT EQUIPMENT USED ............................................................................................ 7 4.3 DESCRIPTION OF TEST MODES ................................................................................................... 8 5 FACILITIES AND ACCREDITATIONS ..................................................................................................... 9 5.1 FACILITIES ....................................................................................................................................... 9 5.2 LABORATORY ACCREDITATIONS AND LISTINGS ....................................................................... 9 6 TEST SYSTEM UNCERTAINTY ........................................................................................................... 10 7 SETUP OF EQUIPMENT UNDER TEST .............................................................................................. 11 7.1 RADIO FREQUENCY TEST SETUP 1 .......................................................................................... 11 7.2 RADIO FREQUENCY TEST SETUP 2 .......................................................................................... 11 7.3 CONDUCTED EMISSION TEST SETUP ....................................................................................... 13 7.4 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM .......................................................... 14 7.5 SUPPORT EQUIPMENT ................................................................................................................ 14 8 FREQUENCY HOPPING SYSTEM REQUIREMENTS ........................................................................ 15 8.1 STANDARD APPLICABLE ............................................................................................................. 15 8.2 EUT PSEUDORANDOM FREQUENCY HOPPING SEQUENCE ................................................. 15 8.3 EQUAL HOPPING FREQUENCY USE .......................................................................................... 16 8.4 FREQUENCY HOPPING SYSTEM ............................................................................................... 16 9 TEST REQUIREMENTS ....................................................................................................................... 17 9.1 20DB BANDWIDTH ........................................................................................................................ 17 9.2 CARRIER FREQUENCY SEPARATION ........................................................................................ 21 9.3 NUMBER OF HOPPING FREQUENCIES ..................................................................................... 25 9.4 AVERAGE TIME OF OCCUPANCY (DWELL TIME) ...................................................................... 27 9.5 MAXIMUM PEAK CONDUCTED OUTPUT POWER ..................................................................... 29 9.6 CONDUCTED SUPRIOUS EMISSION .......................................................................................... 33 9.7 RADIATED SPURIOUS EMISSION ............................................................................................... 45 9.8 CONDUCTED EMISSION TEST .................................................................................................... 59 9.9 ANTENNA APPLICATION .............................................................................................................. 60 Report No. ENS2212190149W01001R Page 3 of 61 Ver.1.0 1 TEST RESULT CERTIFICATION Applicant : AlphaTheta Corporation Address : 6F, Yokohama i-Mark Place, 4-4-5 Minatomirai, Nishi-ku, Yokohama, Kanagawa 220-0012 JAPAN Manufacturer : AlphaTheta Corporation Address : 6F, Yokohama i-Mark Place, 4-4-5 Minatomirai, Nishi-ku, Yokohama, Kanagawa 220-0012 JAPAN EUT : Wireless Monitor Headphones system Model Name : HDJ-F10 Trademark : AlphaTheta Measurement Procedure Used: APPLICABLE STANDARDS STANDARD TEST RESULT FCC 47 CFR Part 2, Subpart J FCC 47 CFR Part 15, Subpart C PASS The above equipment was tested by EMTEK (SHENZHEN) CO., LTD. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10 (2013) and the energy emitted by the sample EUT tested as described in this report is in compliance with the requirements of FCC Rules Part 2 and Part 15.247 The test results of this report relate only to the tested sample identified in this report. Date of Test : December 29, 2022 to March 19, 2023 Prepared b y : Una Yu/Editor Reviewer : Joe Xia/Supervisor Approved & Authorized Signer : Lisa Wan g/…

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Report No. ENS2212190149W01001R Page 31 of 61 Ver.1.0 2DH5_Ant1_2402 2DH5_Ant1_2441 2DH5_Ant1_2480 Report No. ENS2212190149W01001R Page 32 of 61 Ver.1.0 3DH5_Ant1_2402 3DH5_Ant1_2441 3DH5_Ant1_2480 Report No. ENS2212190149W01001R Page 33 of 61 Ver.1.0 9.6 CONDUCTED SUPRIOUS EMISSION 9.6.1 Applicable Standard According to FCC Part 15.247(d) and KDB 558074 D01 15.247 MEAS GUIDANCE v05r02 9.6.2 Conformance Limit According to FCC Part 15.247(d): In any 100 kHz bandwidth outside the frequency band in which the spread spectrum intentional radiator is operating, the radio frequency power that is produced by the intentional radiator shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the desired power, based on either an RF conducted, provided the transmitter demonstrates compliance with the peak conducted power limits. 9.6.3 Test Configuration Test according to clause 7.1 radio frequency test setup 1 9.6.4 Test Procedure The transmitter output (antenna port) was connected to the spectrum analyzer  Reference level measurement Establish a reference level by using the following procedure: Set instrument center frequency to DSS channel center frequency. Set Span = approximately 5 times the 20 dB bandwidth, centered on a hopping channel. Set the RBW = 100 kHz. Se…

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