S7A-SP99EXPAND BOOM(EXPAND)

| EXPAND BOOM 1 EXPAND BOOM Bluetooth Stereo Headset & Intercom SENA www.senabluetooth.com User’s Guide 1. POWERING ON/OFF AND CHARGING 1.1 Powering On Press the Center Button and the (+) Button at the same time for 1 second to power on. The blue LED turns on and you will hear ascending beeps and “Hello”. 1.2 Powering Off Tap the Center Button and the (+) Button simultaneously (you don’t need to press and hold in order for the system to power off). The red LED turns on for about 2 seconds until it turns off completely and you will hear “Goodbye” and descending beeps. 1.3 Charging The charging LED beside the charging port turns on red while charging, and turns to blue when the headset is fully charged. It takes about 2.5 hours to be completely charged. You can use the EXPAND BOOM while charging. It is especially helpful when you use a cigarette charger for a long road trip. 1.4 Low Battery Warning When the battery is low, the blinking blue LED in stand-by mode turns to red and you will hear mid-tone triple beeps and a voice prompt, “Low battery”. | EXPAND BOOM 2 1.5 Checking the Battery Level You can check the battery level in two different ways when the headset is powering on. 1.5.1 LED Indicator When the headset is powering on, the red LED flashes rapidly indicating the battery level. 4 flashes = High, 70~100% 3 flashes = Medium, 30~70% 2 flashes = Low, 0~30% 1.5.2 Voice Prompt Indicator When you power on the headset, keep pressing the Center Button and the (+) Button simultaneously for several seconds until you hear high tone triple beeps. Then you will hear voice prompt indicating the battery level. However, if you release the buttons as soon as the headset turns on, you will not hear the voice prompt of battery level indication. 2. Volume Adjustment You can easily adjust the volume by tapping the (+) Button or the (-) Button. You will hear a beep when the volume reaches maximum or minimum level. The volume is set and maintained independently at different levels for each audio source even when you turn off and on the headset. For example, once you set the volume for mobile phone handsfree, it will not change even if you adjust the volume when you hear Bluetooth MP3 music. So you can always maintain the preferred optimum volume level for each audio source. 3. EXPAND BOOM CONFIGURATION SETTING You can set the configuration of the EXPAND BOOM by the voice menu instruction as below. 1. To enter into voice configuration menu, press and hold the Center Button for 10 seconds until the LED shows solid blue and you hear high tone double beeps. You will also hear a voice prompt, “Configuration menu”. 2. Tap the (+) Button or (-) Button to navigate between the menus. You will hear voice prompts for each menu items as below. 3. You can enable / disable the feature or execute the command by tapping the Center Button. 4. If you want to exit the configuration immediately, tap the (+) Button or (-) Button until you hear a voice prompt, “Exit configuration”, then tap the Center Button. The voice prompt for each menu item is as follows: (1) Phone pairing (2) Multipoint pairing (3) Phone selective pairing | EXPAND BOOM 3 (4) Media Selective pairing (5) VOX phone (6) VOX intercom (7) VOX sensitivity (8) Voice prompt (9) Delete all pairings (10) Factory reset (11) Exit configuration 3.1 Mobile Phone Pairing Voice Prompt “Phone pairing” Factory Default N/A To go into mobile phone pairing mode, tap the (+) Button or the (-) Button until you hear a voice prompt, “Phone pairing”. Please refer to section 7.1 for details on mobile phone pairing. If you tap the (+) or (-) Button, you can exit from the phone pairing mode. 3.2 Multipoint Pairing Voice Prompt “Multipoint pairing” Factory Default N/A To go into multipoint pairing mode, tap the (+) Button or the (-) Button until you hear a voice prompt, “Multipoint pairing”. Please refer to section 7.2 for details on multipoint pairing. If you tap the (+) or (-) Button, you can exit from the multipoint pairing mode. 3.3 Phone Selective Pairing Voice Prompt “Phone selective pairing” Factory Default N/A To go into phone selective pairing mode, tap the (+) Button or the (-) Button until you hear a voice prompt, “Phone selective pairing”. Please refer to section 8 for more details on phone selective pairing. If you tap the (+) or (-) Button, you can exit from the phone selective pairing mode. | EXPAND BOOM 4 3.4 Media Selective Pairing Voice Prompt “Media selective pairing” Factory Default N/A To go into media selective pairing mode, tap the (+) Button or the (-) Button until you hear a voice prompt, “Media selective pairing”. Please refer to section 8 for more details on media selective pairing. If you tap the (+) or (-) Button, you can exit from the media selective pairing mode. 3.5 Enabling/Disabling Voice Activated Phone Answering Voice Prompt “VOX phone” Factory Default Enable Enable / Disable Tap the Center Button Tap the (+) Button or the (-) Button until you hear a voice prompt, “VOX phone”. If this feature is enabled, you can answer incoming calls by simply saying a word loudly enough, unless you are connected to intercom. For example, when you hear a series of beeps for an incoming call, you can answer the phone by saying “Hello” or any other word loudly. However, the phone VOX feature does not work if you are connected to intercom. This is enabled from the factory but you can disable this. If this mode is disabled, you have to tap the Center Button to answer an incoming call. 3.6 Enabling/Disabling Voice Activated Intercom Voice Prompt “VOX intercom” Factory Default Disable Enable / Disable Tap the Center Button Tap the (+) Button or the (-) Button until you hear a voice prompt, “VOX intercom”. If this feature is enabled, you can initiate an intercom conversation with the last connected intercom friend by speaking any word loudly enough. If you start an intercom conversation by VOX, the intercom terminates automatically when you and your intercom friend remain…

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SENA TECHNOLOGIES.Inc 19, Heolleung-ro 569-gil, Gangnam-gu, Seoul, South Korea May 17, 2021 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Letter of Authorization We, the undersigned, hereby authorize Kenneth Kim of NCT Co.,Ltd. to act on our behalf in all manners relating to application for equipment authorization for FCC ID: S7A-SP99 / IC : 8154A-SP99 including signing of all documents relating to these matters. Any and all acts carried out by Kenneth Kim of NCT Co.,Ltd. on our behalf shall have the same affect as acts of our own. This authorization is valid until further written notice from SENA TECHNOLOGIES.Inc “I, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a).” Sincerely, Seunghyun KIM / Research Engineer

SENA TECHNOLOGIES.Inc 19, Heolleung-ro 569-gil, Gangnam-gu, Seoul, South Korea Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: S7A-SP99 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Block Diagram Schematics Operational Description Part List [SP99] BLK [SP99] SCH [SP99] OpDes [SP99] Part List The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); Exhibit Type File Name External Photos Internal Photos Test Setup Photos Manual [SP99] EXT Photo [SP99] INT Photo [SP99] Test Setup Photo [SP99] Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. Sincerely, Seunghyun KIM / Research Engineer

USB Port

SENA_SP99_Label & Location

Internal BT Module BT Antenna

Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 2 /58 Test Report Version Test Report No. Date Description Tested by Reviewed by DRRFCC2105-0036 May. 13, 2021 Initial issue DuHee Lee HakMin Kim Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 3 /58 Table of Contents 1. DESCRIPTION OF DEVICE .......................................................................................................... 4 1.1 Guidance Applied ................................................................................................................... 4 1.2 DUT Antenna Locations ......................................................................................................... 4 1.3 SAR Test Exclusions .............................................................................................................. 4 1.4 Power Reduction for SAR ...................................................................................................... 4 1.5 Device Serial Numbers .......................................................................................................... 4 2. INTROCUCTION ........................................................................................................................... 5 3. DESCRIPTION OF TEST EQUIPMENT ....................................................................................... 6 3.1 SAR MEASUREMENT SETUP .............................................................................................. 6 3.2 Probe Specification ................................................................................................................ 7 3.3 Probe Calibration Process ..................................................................................................... 8 3.3.1 E-Probe Calibration ........................................................................................................... 8 3.4 Data Extrapolation .................................................................................................................. 9 3.5 ELI PHANTOM ..................................................................................................................... 10 3.6 Device Holder for Transmitters ............................................................................................. 10 3.7 Brain Simulation Mixture Characterization ........................................................................... 11 3.8 SAR TEST EQUIPMENT ..................................................................................................... 11 4. TEST SYSTEM SPECIFICATIONS ............................................................................................. 12 5. SAR MEASUREMENT PROCEDURE ........................................................................................ 13 5.1 Measurement Procedure ...................................................................................................... 13 6. RF EXPOSURE LIMITS .............................................................................................................. 15 7. SAR MEASUREMENT PROCEDURES ..................................................................................... 16 7.1 Measured and Reported SAR .............................................................................................. 16 8. Nominal and Maximum Output Power Spec and RF Conducted Powers ............................ 17 8.1 Bluetooth Nominal and Maximum Output Power Spec and Conducted Powers ................. 17 9. SYSTEM VERIFICATION ............................................................................................................ 19 9.1 Tissue Verification ................................................................................................................ 19 9.2 Test System Verification ....................................................................................................... 19 10. SAR TEST RESULTS ............................................................................................................... 20 10.1 Head SAR Results ............................................................................................................. 20 10.2 SAR Test Notes .................................................................................................................. 20 11. MEASUREMENT UNCERTAINTIES ......................................................................................... 21 13. CONCLUSION ........................................................................................................................... 22 14. REFERENCES .......................................................................................................................... 23 Attachment 1. – Probe Calibration Data ...................................................................................... 25 Attachment 2. – Dipole Calibration Data ..................................................................................... 48 Attachment 3. – SAR SYSTEM VALIDATION ............................................................................... 57 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 4 /58 1. DESCRIPTION OF DEVICE Environmental evaluation measurements of specific absorption rate (SAR) distributions in emulated human head and body tissues exposed to radio frequency (RF) radiation from wireless portable devices for compliance with the rules and regulations of the U.S. Federal Communications Commission (FCC). General Information EUT type EXPAND BOOM(EXPAND) FCC ID S7A-SP99 Equipment model name SP99 Equipment add model name N/A Equipment serial no. Identical prototype ode(s) of Operation Bluetooth TX Frequency Range Band Operating Modes…

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Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 36 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 37 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 38 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 39 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 40 /58

Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 41 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 42 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 43 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 44 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 45 /58

Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 46 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 47 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 48 /58 Attachment 2. – Dipole Calibration Data Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 49 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 50 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 51 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 52 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 53 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 54 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 55 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 56 /58 Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 57 /58 Attachment 3. – SAR SYSTEM VALIDATION Report No.: DRRFCC2105-0036 FCC ID: S7 A-SP99 TRF-RF-601(03)161101 Prohibits the copying and re-issue of this report without DT&C approval. Pages: 58 /58 SAR System Validation Per FCC KDB 865664 D02v01r02, SAR system validation status should be documented to confirm measurement accuracy. The SAR systems (including SAR probes, system components and software versions) used for this device were validated against its performance specifications prior to the SAR measurements. Reference dipoles were used with the required tissue- equivalent media for system validation, according to the procedures outlined in FCC KDB 865664 D01v01r04 and IEEE 1528-2013.Since SAR probe calibrations are frequency dependent, each probe calibration point was validated at a frequency within the valid frequency range of the probe calibration point, using the system that normally operates with the probe for routine SAR measurements and according to the required tissue-equivalent media. A tabulated summary of the system validation status including the validation date(s), measurement frequencies, SAR probes and tissue dielectric parameters has been included. Table Attachment 3.1 SAR System Validation Summary SAR System Freq. [MHz] Date Probe S/N Probe Type Probe CAL. Point PERM. COND. CW Validation MOD. Validation (εr) (σ) Sensi- tivity Probe Linearity Probe Isortopy MOD. Type Duty Factor PAR A 2 450 2020.06.15 3866 EX3DV4 2 450 Head 39.292 1.826 PASS PASS PASS OFDM PASS PASS NOTE: While the probes have been calibrated for both a CW and modulated signals, all measurements were performed using communication systems calibrated for CW signals only. Modulations in the table above represent test configurations for which the measurement system has been validated per FCC KDB Publication 865664 D01v01r04 for scenarios when CW probe calibrations are used with other signal types. SAR systems were validated for modulated signals with a periodic duty cycle, such as GMSK, or with a high peak to average ratio (> 5 dB), such as OFDM according to KDB 865664.

Report No.: DRRFCC2105-0036 FCC ID: S7A-SP99 Date of issue: May. 13, 2021 Copyright Ⓒ 2021, DT&C Co., Ltd. SAR Plots Verification Plots SAR Test Plots DT&C Co., Ltd. DUT: Dipole 2450 MHz; Type: D2450V2; Serial: D2450V2 - SN:920 Communication System: UID 0, CW (0); Frequency: 2450 MHz; Duty Cycle: 1:1 Medium parameters used: f = 2450 MHz; σ = 1.861 S/m; ε r = 38.146; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY5 Configuration: Probe: EX3DV4 - SN3866; ConvF(7.2, 7.2, 7.2) @ 2450 MHz; Calibrated: 5/27/2020 Electronics: DAE4 Sn1335 Sensor-Surface: 2mm (Mechanical Surface Detection) Phantom: ELI v6.0; Type: QDOVA002AA; Serial: 1166 Measurement SW: DASY52, Version 52.10 (3); SEMCAD X Version 14.6.13 (7474) Test Date: 2021-05-04; Ambient Temp: 19.9; Tissue Temp: 19.7 2450 MHz System Verification (100 mW) Area Scan (9x11x1): Measurement grid: dx=12mm, dy=12mm Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Power Drift = 0.04 dB Peak SAR (extrapolated) = 12.5 W/kg SAR(1 g) = 5.32 W/kg; SAR(10 g) = 2.49 W/kg 0 dB = 8.9 W/kg DT&C Co., Ltd. DUT: SP99; Type: Bluetooth Headset Communication System: UID 0, Bluetooth (0); Frequency: 2441 MHz; Duty Cycle: 1:1.302 Medium parameters used: f = 2441 MHz; σ = 1.85 S/m; ε r = 38.175; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY5 Configuration: Probe: EX3DV4 - SN3866; ConvF(7.2, 7.2, 7.2) @ 2441 MHz; Calibrated: 5/27/2020 Electronics: DAE4 Sn1335 Sensor-Surface: 2mm (Mechanical Surface Detection) Phantom: ELI v6.0; Type: QDOVA002AA; Serial: 1166 Measurement SW: DASY52, Version 52.10 (3); SEMCAD X Version 14.6.13 (7474) Test Date: 2021-05-04; Ambient Temp: 19.9; Tissue Temp: 19.7 Touch from Body, Rear, Bluetooth 1 Mbps Ch. 39, Ant Internal Area Scan (15x15x1): Measurement grid: dx=12mm, dy=12mm Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Power Drift = 0.07 dB Peak SAR (extrapolated) = 0.976 W/kg SAR(1 g) = 0.541 W/kg; SAR(10 g) = 0.291 W/kg 0 dB = 0.756 W/kg A1

Test Repot No.: NW2105-F001 211-71, Geumgok-ro, Hwaseong-si, Gyeonggi-do, Korea 18511 www.nct.re.kr TEL: +82-31-323-6070 FAX: +82-31-323-6071 Page 2 of 66 Table of contents 1. General Information -------------------------------------------------------------------------------- 2. Information’s about Test Item ------------------------------------------------------------------- 3. Test Report -------------------------------------------------------------------------------------------- 3.1 Test Summary ------------------------------------------------------------------------------------- 3.2 Test Report Version ----------------------------------------------------------------------------- 3.3 Transmitter Requirements 3.3.1 Antenna Requirement --------------------------------------------------------------------- 3.3.2 20 ㏈ Bandwidth & Occupied Bandwidth (99%) ----------------------------------- 3.3.3 Number of Hopping Frequencies ------------------------------------------------------- 3.3.4 Time of Occupancy (Dwell Time) ------------------------------------------------------- 3.3.5 Carrier Frequencies Separation -------------------------------------------------------- 3.3.6 Peak Output Power ------------------------------------------------------------------------ 3.3.7 TX Radiated Spurious Emission and Conducted Spurious Emission --------- 3.3.8 Conducted Emission ----------------------------------------------------------------------- APPENDIX APPENDIX I TEST SETUP ---------------------------------------------------------------------- APPENDIX II TEST EQUIPMENT USED FOR TESTS ---------------------------------- 3 3 5 5 6 7 8 15 18 20 24 31 60 63 65 Test Repot No.: NW2105-F001 211-71, Geumgok-ro, Hwaseong-si, Gyeonggi-do, Korea 18511 www.nct.re.kr TEL: +82-31-323-6070 FAX: +82-31-323-6071 Page 3 of 66 1. General Information’s 1.1 Test Performed Laboratory : NCT Co., Ltd. Address : 211-71, Geumgok-ro, Hwaseong-si, Gyeonggi-do, 18511, Korea Telephone : +82-31-323-6070 Facsimile : +82-31-323-6071 FCC Designation No. : KR0166 FCC Registration No. : 409631 IC Site Registration No. : 25897 2. Information’s about Test Item 2.1 Applicant Information Company name : SENA TECHNOLOGIES.Inc Address : 19, Heolleung-ro 569-gil, Gangnam-gu, Seoul, Korea Telephone / Facsimile : +82-2-571-8283 / +82-2-573-7710 2.2 Equipment Under Test (EUT) description Test item particulars : EXPAND BOOM(EXPAND) Model and/or type reference : SP99 Additional model name : - Serial number : Prototype Antenna type and gain : Chip Antenna(M/N: SENA_009) with Max gain: 0.93 ㏈i Date (s) of performance of tests: : 2021-04-21 ~ 2021-04-28 Date of receipt of test item : 2021-04-12 EUT condition : Pre-production, not damaged Number of channel : 79 EUT Power Source : DC 3.7 V Type of Modulation : BDR Mode(GFSK), EDR Mode(Pi/4 DQPSK, 8DPSK) Firmware version : 1.0 Hardware version : 1.0 Test software name(version) : CSR BlueSuite_BlueTest3(2.6.2) Test Repot No.: NW2105-F001 211-71, Geumgok-ro, Hwaseong-si, Gyeonggi-do, Korea 18511 www.nct.re.kr TEL: +82-31-323-6070 FAX: +82-31-323-6071 Page 4 of 66 2.3 Tested Frequency Test Mode Test Frequency (㎒) Low frequency Middle frequency High frequency GFSK 2 402 2 441 2 480 Pi/4 DQPSK 2 402 2 441 2 480 8DPSK 2 402 2 441 2 480 2.4 Used Test Software Setting Value Test Mode Setting Item CFG TX POWER - Power target GFSK 16 Pi/4 DQPSK 8 8DPSK 8 2.5 Worst-Case BDR GFSK(DH5) EDR 8DPSK(3-DH5) Note: The power measurement has been conducted to determine the worst-case mode from all possible combinations between available modulations, data rates. Test Repot No.: NW2105-F001 211-71, Geumgok-ro, Hwaseong-si, Gyeonggi-do, Korea 18511 www.nct.re.kr TEL: +82-31-323-6070 FAX: +82-31-323-6071 Page 5 of 66 3. Test Report 3.1 Test Summary Applied FCC Rule IC Rule Test Items Test Condition Result 15.203 - Antenna Requirement Conducted C 15.247(a) - 20 ㏈ Bandwidth C - RSS GEN (6.7) Occupied Bandwidth (99%) C 15.247(a) RSS-247 (5.1) Number of Hopping Frequencies C 15.247(a) RSS-247 (5.1) Time of Occupancy (Dwell Time) C 15.247(a) RSS-247 (5.1) Carrier Frequencies Separation C 15.247(b) RSS-247 (5.4) Peak Output Power C 15.247(d) RSS-247 (5.5) Conducted Spurious Emission C 15.247(d) 15.205 & 15.209 RSS-247 (5.5) RSS-GEN (8.9 & 8.10) Radiated Spurious Emission Radiated C 15.207 RSS-GEN (8.8) Conducted Emissions AC Line Conducted C Note 1: C=Complies NC=Not Complies NT=Not Tested NA=Not Applicable The sample was tested according to the following specification: ANSI C63.10:2013. Compliance was determined by specification limits of the applicable standard according to customer requirements. Test Repot No.: NW2105-F001 211-71, Geumgok-ro, Hwaseong-si, Gyeonggi-do, Korea 18511 www.nct.re.kr TEL: +82-31-323-6070 FAX: +82-31-323-6071 Page 6 of 66 3.2 Test Report Version Test Report No. Date Description NW2105-F001 2021-05-17 Initial issue Test Repot No.: NW2105-F001 211-71, Geumgok-ro, Hwaseong-si, Gyeonggi-do, Korea 18511 www.nct.re.kr TEL: +82-31-323-6070 FAX: +82-31-323-6071 Page 7 of 66 3.3 Transmitter Requirements 3.3.1 Antenna Requirement Accoding to §15.203 An intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device. The use of a permanently attached antenna or of an antenna that uses a unique coupling to the intentional radiator shall be considered sufficient to comply with the provisions of this section. The manufacturer may design the unit so that a broken antenna can be replaced by the user, but the use of a standard antenna jack or electrical connector is prohibited. Accoding to §15.247(b)(4) e conducted output power limit specified in paragraph (b) of this section is based on the use of antennas with directional gains that do not exceed 6 ㏈i. Except as shown in paragraph (c) of this section, if transmitting antennas of directional gain greater than 6 ㏈i are used, the conducted output power from the intentional radiator shall be reduce…

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Report No.: DRRFCC2105-0036 FCC ID: S7A-SP99 Date of issue: May. 13, 2021 Copyright Ⓒ 2021, DT&C Co., Ltd. SAR Test Setup Photographs Head SAR Test Photo Report No.: DRRFCC2105-0036 FCC ID: S7A-SP99 Date of issue: May. 13, 2021 Copyright Ⓒ 2021, DT&C Co., Ltd.  Test Setup Photo (Liquid depth) Note: The liquid depth is maintained at a minimum depth of 15 cm to minimize reflections from the upper surface. Report No.: DRRFCC2105-0036 FCC ID: S7A-SP99 Date of issue: May. 13, 2021 Copyright Ⓒ 2021, DT&C Co., Ltd.  Test Setup Photo (Head SAR Test Photo) Report No.: DRRFCC2105-0036 FCC ID: S7A-SP99 Date of issue: May. 13, 2021 Copyright Ⓒ 2021, DT&C Co., Ltd.  Test Setup Photo

Below 30 MHz Below 1 GHz Above 1 GHz Conducted Emission