2A3NOTG103Wireless Lavalier Microphone

FCC Warnning: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection againstharmful interference in a residential installation. This equipment generates, uses and can radiateradio frequency energy and, if not installed and used in accordance with the instructions, maycause harmful interference to radio communications. However, there is no guarantee thatinterference will not occur in a particular installation. If this equipment does cause harmfulinterference to radio or television reception, which can be determined by turning the equipmentoff and on, the user is encouraged to try to correct the interference by one or more of thefollowing measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 0cm between the radiator and your body.

ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Room 2101, 21th Floor of B Block, Silicon Valley Plaza,82 Culture Street,Jinshui District,ZHENGZHOU,HENAN China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2024-9-30 To whom it may concern: We, ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD, hereby certify that the equipment for which authorization is sought (FCC ID: 2A3NOTG103) is not “covered” equipment prohibited from receiving an equipment authorization pursuant to § 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, we are not identified on the Covered List (https://www.fcc.gov/supplychain/coveredlist) as an entity producing “covered” equipment. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(b) and (d)(5) and (6). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. Sincerely, Signature Weidong Shen General Manager ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD 62_[model] CoveredEqu_2.911(d)(5)(i) and (ii) - U, V03 ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Room 2101, 21th Floor of B Block, Silicon Valley Plaza,82 Culture Street,Jinshui District,ZHENGZHOU,HENAN China

ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Room 2101, 21th Floor of B Block, Silicon Valley Plaza, 82 Culture Street, Jinshui District, Zhengzhou City, Henan Province, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2024/09/25 U.S. Agent Designation ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: 2A3NOTG103): Name and company of U.S. agent: GSS SERVICE INC Physical U.S. address of agent: 6547 N Academy Blvd #2266 Colorado Springs COLORADO 80918 United States FRN of U.S. agent: 0033402082 Email address of U.S. agent: [email protected] GSS SERVICE INC acknowledges their obligation to accept service of process on behalf of ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD with the FRN [0031620636] accepts its obligation to maintain an agent for 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. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature Weidong Shen Manager ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Signature Michoux Logan PM GSS SERVICE INC 48_[mo del] US_Agent_2.911(d)(7) - U, V0 5

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2024-9-30> Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products: FCC ID Model name 2A3NOTG103 TG103 For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title： Weidong Shen/General Manager Company: ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Address: Room 2101, 21th Floor of B Block, Silicon Valley Plaza,82 Culture Street,Jinshui District,ZHENGZHOU,HENAN China Phone: 0371-63262209 Fax: N/A E-Mail: [email protected]

ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Room 2101, 21th Floor of B Block, Silicon Valley Plaza,82 Culture Street,Jinshui District,ZHENGZHOU,HENAN China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2024-9-30 To whom it may concern: We, the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2A3NOTG103 including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. By signing this application form, we agree to Eurofins’ current valid General Terms and Conditions (AGB),Testing and Certification Regulations (PZO) which can be viewed on following website www.eurofins.de/ee or retrieved on request. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title： Weidong Shen/General Manager Company: ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Address: Room 2101, 21th Floor of B Block, Silicon Valley Plaza,82 Culture Street,Jinshui District,ZHENGZHOU,HENAN China Phone: 0371-63262209 Fax: N/A E-Mail: [email protected]

FCC ID: 2A3NOTG103 External Photos of the EUT FCC ID: 2A3NOTG103 FCC ID: 2A3NOTG103 FCC ID: 2A3NOTG103

Label and Location Size: L: 1.0cm*W: 0.2cm Label and Location FCC ID : 2A3NOTG103

FCC ID: 2A3NOTG103 Internal Photos of the EUT FCC ID: 2A3NOTG103 ANT FCC ID: 2A3NOTG103

RF Exposure evaluation FCC ID: 2A3NOTG103 1.1. Applicable Standard According to §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to §1.1310 and §2.1093 RF exposure requirement KDB447498 v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies 1.2. Requirement According to KDB447498 D01 General RF Exposure Guidance v06 Section 4.3.1 Standalone SAR test exclusion considerations: “Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition, listed below, is satisfied. These test exclusion conditions are based on source-based time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune-up tolerance, and the minimum test separation distance required for the exposure conditions.22 The minimum test separation distance is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander (see 5) of section 4.1). To qualify for SAR test exclusion, the test separation distances applied must be fully explained and justified by the operating configurations and exposure conditions of the transmitter and applicable host platform requirements, typically in the SAR measurement or SAR analysis report, according to the required published RF exposure KDB procedures. When no other RF exposure testing or reporting is required, a statement of justification and compliance must be included in the equipment approval, in lieu of the SAR report, to qualify for the SAR test exclusion. When required, the device specific conditions described in the other published RF exposure KDB procedures must be satisfied before applying these SAR test exclusion provisions; for example, handheld PTT two-way radios, handsets, laptops & tablets etc.23 “ [(max. power of channel, including tune-up tolerance, mW)/ (min. test separation distance, mm)] · [√f (GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where: • f (GHz) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to 5) in section 4.1 is applied to determine SAR test exclusion. 1.3. Manufacturing tolerance Freq. (MHz) Field strength(max)(dBuV/m) EIRP (max) (dBm) Turn-up Power (dB) Max tune up power (dBm) [P] 2402MHz 93.43 -1.83 -1.0±1 0.0 Note: EIRP=E-104.8+20logD, D=3 Page 2 of 2 2. E v a l u a t i o n R e s u l t Evaluation Results Band/Mode f (GHz) Antenna Distance (mm) RF output power (including tune-up tolerance) SAR Test Exclusion Threshold SAR Test Exclusion dBm mW 2.4G 2.45 5 0.0 1.0000 0.3130<3.0 Yes 3. C o n c l u s i o n The measurement results comply with the FCC Limit per 47 CFR 2.1093 for the uncontrolled RF Exposure and SAR Exclusion Threshold per KDB 447498 v06 .....................End of Report.........................

承 認 書 SPECIFICATION FOR APPROVAL 客戶名稱 CUSTOMER ： 客戶料號 CUSTOMER’S P/N ： 料號 PART NUMBER ： WAN3216F245H08 規格 DESCRIPTION ： Chip Antenna 3216 L Ant 2.45G Type H08 版本 VERSION ： V1.6 日期 ISSUE DATE ： 2022/01/05 客 戶 承 認 CUSTOMER APPROVED 工 程 部 R&D CENTER 承 認 APPROVAL 確 認 CHECKED 製 作 DRAWN Ray Tennyson Snow 萬誠科技股份有限公司 OneWave Electronic Co., Ltd. 11261台北市北投區立功街151號1樓 1F, No. 151, Li Gong Street, Beitou District, Taipei City 11261, Taiwan 電話: (02) 2898-2220 TEL: +886 2 2898-2220 傳真: (02) 2898-5055 FAX: +886 2 2898-5055 2/11 ONEWAVE TECHNOLOGY CO., LTD. 3216 Chip antenna For Bluetooth / WLAN Applications Dimension (mm) L 3.23 ± 0.20 W 1.66 ± 0.20 T 0.45 ± 0.20 P/N: WAN3216F245H08 3/11 ONEWAVE TECHNOLOGY CO., LTD. Part Number Information WAN 3216 F 245 H 08 A B C D E F A Product Series Antenna B Dimension L x W 3.2 x 1.6mm (±0.2mm) C Material High K material D Working Frequency 2.4 ~ 2.5GHz E Feeding mode PIFA & Single Feeding F Antenna type Type = 08 1. Electrical Specification Remark : Bandwidth & Peak Gain was measured under evaluation board of next page Specification Part Number WAN3216F245H08 Central Frequency 2450 MHz Bandwidth 120 (Min.) MHz Return Loss -6.5 (Max) dB Peak Gain 1.75 dBi Impedance 50 Ohm Operating Temperature -40～+110 °C Maximum Power 4 W Resistance to Soldering Heats 10 ( @ 260°C) sec. Polarization Linear Azimuth Beamwidth Omni-directional Termination Cu / Sn (Leadless) 4/11 ONEWAVE TECHNOLOGY CO., LTD. 2. Recommended PCB Pattern Evaluation Board Dimension 2 nd Evaluation Board Dimension Suggested Matching Circuit 重要資訊 : 匹配元件建議使用精準度高的電感±0.1~0.3nH、電容±0.1pF 5/11 ONEWAVE TECHNOLOGY CO., LTD. Layout Dimensions in Clearance area( Size=5.9*5.0mm) FootPrint (Unit : mm) ◆ 2 nd Layout Dimensions in Clearance area( Size=8.0*3.0mm) Matching Circuit 50 ohm transmission Line 6/11 ONEWAVE TECHNOLOGY CO., LTD. 3. Measurement Results Return Loss 7/11 ONEWAVE TECHNOLOGY CO., LTD. Radiation Pattern Efficiency Peak Gain Directivity 2400MHz 81.46% 1.67 dBi 2.56 dBi 2450MHz 84.75% 1.75 dBi 2.46 dBi 2500MHz 82.68% 1.70 dBi 2.52 dBi Chamber Coordinate System X Y Z 8/11 ONEWAVE TECHNOLOGY CO., LTD. 4.Reliability and Test Condictions ITEM REQUIREMENTS TEST CONDITION Solderability 1. Wetting shall exceed 90% coverage 2. No visible mechanical damage Pre-heating temperature:150°C/60sec. Solder temperature:230±5°C Duration:4±1sec. Solder:Sn-Ag3.0-Cu0.5 Flux for lead free: rosin Solder heat Resistance 1. No visible mechanical damage 2. Central Freq. change :within ± 6% 10 ± 0.5 sec. 60 sec . . T E M P ( °C ) 150 °C 2 6 0 °C Pre-heating temperature:150°C/60sec. Solder temperature:260±5°C Duration:10±0.5sec. Solder:Sn-Ag3.0-Cu0.5 Flux for lead free: rosin Component Adhesion (Push test) 1. No visible mechanical damage The device should be reflow soldered(230±5°C for 10sec.) to a tinned copper substrate A dynometer force gauge should be applied the side of the component. The device must with-ST-F 0.5 Kg without failure of the termination attached to component. Component Adhesion (Pull test) 1. No visible mechanical damage Insert 10cm wire into the remaining open eye bend ,the ends of even wire lengths upward and wind together. Terminal shall not be remarkably damaged. Thermal shock 1. No visible mechanical damage 2. Central Freq. change :within ±6% Phase Temperature(°C) Time(min) 1 +110±5°C 30±3 2 Room Temperature Within 3sec 3 -40±2°C 30±3 4 Room Temperature Within 3sec +110°C=>30±3min -40°C=>30±3min Test cycle:10 cycles The chip shall be stabilized at normal condition for 2~3 hours before measuring. Resistance to High Temperature 1. No visible mechanical damage 2. Central Freq. change :within ±6% 3. No disconnection or short circuit. Temperature: +110±5°C Duration: 1000±12hrs The chip shall be stabilized at normal condition for 2~3 hours before measuring. Resistance to Low Temperature 1. No visible mechanical damage 2. Central Freq. change :within ±6% 3. No disconnection or short circuit. Temperature:-40±5°C Duration: 1000±12hrs The chip shall be stabilized at normal condition for 2~3 hours before measuring. Humidity 1. No visible mechanical damage 2. Central Freq. change :within ±6% 3. No disconnection or short circuit. Temperature: 40±2°C Humidity: 90% to 95% RH Duration: 1000±12hrs The chip shall be stabilized at normal condition for 2~3 hours before measuring. 4±1 sec. 60sec TEMP (°C) 150°C 230°C 9/11 ONEWAVE TECHNOLOGY CO., LTD. 5.Soldering and Mounting Mildly activated rosin fluxes are preferred. The minimum amount of solder can lead to damage from the stresses caused by the difference in coefficients of expansion between solder, chip and substrate. The terminations are suitable for all wave and re-flow soldering systems. If hand soldering cannot be avoided, the preferred technique is the utilization of hot air soldering tools. Recommended temperature profiles for re-flow soldering in Figure 1. Products attachment with a soldering iron is discouraged due to the inherent process control limitations. In the event that a soldering iron must be employed the following precautions are recommended. ‧Preheat circuit and products to 150°C ‧Never contact the ceramic with the iron tip ‧Use a 20 watt soldering iron with tip diameter of 1.0mm ‧280°C tip temperature (max) ‧1.0mm tip diameter (max) ‧Limit soldering time to 3 sec. SOLDERING COOLING NATURAL PRE-HEATING TEMPERATURE(°C) 60~120 s 10s max. 30~60s 250~260 230 180 150 TIME(sec.) Reflow Soldering SOLDERING COOLING NATURAL PRE-HEATING TEMPERATURE(°C) within 3s Gradual cooling 150 TIME(sec.) Iron Soldering Over 60s 350 300 10/11 ONEWAVE TECHNOLOGY CO., LTD. 6.Packaging Information Tape Specification: Reel Specification: (7’’, Φ180 mm) Tape Width(mm) A(mm) B(mm) C(mm) D(mm) Chip/Reel(pcs) 8 9.0±0.5 60±2 13.5±0.5 178±2 3000 11/11 ONEWAVE TECHNOLOGY CO., LTD. 7.Storage and Transportation Information Storage Conditions To maintain the solderability of terminal electrodes: 1. Temperature and humidity conditions: -10~ 40°C and 30~70% RH. 2. Recommended products shoul…

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Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao‘an District, Shenzhen, China TEST REPORT FCC Rules and Regulations Part PART 15.249 Report Reference No..............: CTA24091001901 FCC ID...................................: 2A3NOTG103 Compiled by ( position+printed name+signature ... : File administrators Jinghua Xiao Supervised by ( position+printed name+signature ... : Project Engineer Xudong Zhang Approved by ( position+printed name+signature ... : RF Manager Eric Wang Date of issue ..................................... : Sep. 13, 2024 Testing Laboratory Name .............. : Shenzhen CTA Testing Technology Co., Ltd. Address ............................................ : Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Applicant’s name ............................ : ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Address ............................................ : Room 2101, 21th Floor of B Block, Silicon Valley Plaza, 82 Culture Street, Jinshui District, Zhengzhou City, Henan Province, China Standard ........................................... : FCC Rules and Regulations PART 15.249 Shenzhen CTA Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen CTA Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTA Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description .....................: Wireless Lavalier Microphone Trade Mark ....................................... : RETEKESS Manufacturer .................................... : ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Model/Type reference....................... : TG103 Listed Models .................................. : N/A Modulation ....................................... : GFSK Frequency .......................................... 2402-2480MHz Ratings ............................................. : DC 3.7V From battery and DC 5.0V From external circuit Result................................................ : PASS Report No.: CTA24091001901 Page 2 of 28 T E S T R E P O R T Equipment under Test : Wireless Lavalier Microphone Model /Type : TG103 Listed Models : N/A Applicant : ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Address : Room 2101, 21th Floor of B Block, Silicon Valley Plaza, 82 Culture Street, Jinshui District, Zhengzhou City, Henan Province, China Manufacturer : ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Address : Room 2101, 21th Floor of B Block, Silicon Valley Plaza, 82 Culture Street, Jinshui District, Zhengzhou City, Henan Province, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: CTA24091001901 Page 3 of 28 Contents 1. 0BT E S T S T A N D A R D S................................................................. 4 2. 1BS U M M A R Y ............................................................................ 5 2.1. General Remarks 5 2.2. 7BProduct Description 5 2.3. 8BEquipment Under Test 5 2.4. 9BShort description of the Equipment under Test (EUT) 5 2.5. 10BEUT operation mode 6 2.6. 11BBlock Diagram of Test Setup 6 2.7. Modifications 6 3. 2BT E S T E N V I R O N M E N T ............................................................. 7 3.1. Address of the test laboratory 7 3.2. Test Facility 7 3.3. 17BEnvironmental conditions 7 3.4. 18BSummary of measurement results 8 3.5. Statement of the measurement uncertainty 8 3.6. 20BEquipments Used during the Test 8 4. 3BT E S T C O N D I T I O N S A N D R E S U L T S .......................................... 10 4.1. 21BAC Power Conducted Emission ................................................................................... 10 4.2. Radiated Emission and Band Edges ............................................................................ 13 4.3. 20dB Bandwidth Measurement .................................................................................... 19 4.4. 31BAntenna Requirement ................................................................................................... 21 5. 4BT E S T S E T U P P H O T O S O F T H E E U T ........................................ 22 6. 4BT E S T P H O T O S O F T H E E U T .................................................. 23 Report No.: CTA24091001901 Page 4 of 28 1. 0BT E S T S T A N D A R D S The tests were performed according to following standards: FCC Rules Part 15.249: Operation within the bands 902 - 928 MHz, 2400 - 2483.5 MHz, 5725 - 5875 MHz, and 24.0 - 24.25 GHz. ANSI C63.10:2013 : American National Standard for Testing Unlicensed Wireless Devices ANSI C63.4: 2014: –American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40GHz Range of 9 kHz to 40GHz Report No.: CTA24091001901 Page 5 of 28 2. 1BSU M M A R Y 2.1. General Remarks Date of receipt of test sample : Sep. 09, 2024 Testing commenced on : Sep. 09, 2024 Testing concluded on : Sep. 13, 2024 2.2. 7BProduct Description Name of EUT Wireless Lavalier Microphone Model Number TG103 Power Rating DC 3.7V From battery and DC 5.0V From external circuit Adapter information (Auxiliary test suppied by test Lab） Model: EP-TA20CBC Input: AC 100-240V 50/60Hz Output: DC 5V 2A Hardware version: V1.0 Software version: V1.0 Sample ID: CTA240910019-1# (Engineer sample) CTA240910019-2# (Normal sample) Operation frequency 2402-2480MHz Modulation GFSK Antenna Type Ceramic antenna Antenna Gain 1.75 dBi 2.3. 8BEquipment Under Test Power supply system utilised Power supply voltage : ○ 230V / 50 Hz ○ 120V / 60Hz ○ 1…

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FCC ID: 2A3NOTG103 Test Setup Photos of the EUT