2ACIA-TTBT011In-Wall CSR Bluetooth v5.0 Music Receiver

In-Wall CSR Bluetooth v5.0 Music Receiver Specifications & Features  Audio Inputs :Bluetooth receiver or stereo audio line level .  Audio source select: Source is auto switch, the priority is BT first when playing.  Audio output: Stereo audio phone jack or 3-pin Screw terminal.  Power input(5VDC): Power jack or 3-pin Screw terminal.  Stereo audio output: For connection to any speaker system.  Bluetooth version: v5.0.  Bluetooth receive Distance:10 Meters.  Power source:5VDC/1A Bluetooth Blue LED Status :  Pairing mode: 1s on/off(0.5ms/0.5ms) flash 1 times  Linked mode: Always on  Connectable mode: 5s on/off(0.5ms/4.5ms) flash 1 times How about use button to pairing : §Press button 3 seconds to boot, press button 3 seconds to off. §The first pairing, hold down button 5 seconds to make the Bluetooth pairing boot. §The pairing timeout limit is 90 seconds. §If pairing timeout, you need hold down button 1 second to re-pairing. Federal Communication Commission Interference Statement 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 against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following 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 thatto which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's 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 c ause undesired operation. This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter. RF Exposure Statement: For the product,under normal use condition is at least 20cm away from the body of the user,the user must keeping at least 20 cm distance to the product.

Ten Tronics Co., Ltd Agent Authorization Company: Ten Tronics Co., Ltd Address: No. 33, Lane 347, Chung-San S. Road, Young-Kang District, Tainan, Taiwan Product Name: In-Wall CSR Bluetooth v5.0 Music Receiver Model Number(s): A-1350WPA Product Description: In-Wall CSR Bluetooth v5.0 Music Receiver We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2020/07/23 Name: Jason Wen Title: Manager Company: Ten Tronics Co., Ltd

Ten Tronics Co., Ltd Authorization Letter We, (the approval holder) Company name Ten Tronics Co., Ltd Addresss No. 33, Lane 347, Chung-San S. Road, Young-Kang District, Tainan, Taiwan declare that the following representative (agent): Name (person) Bovey Yang Company name Shenzhen STS Test Services Co., Ltd. Addresss 1/F., Building B, Zhuoke Science Park, No.190, Chongqing Road, Fuyong Street, Bao’an District, Shenzhen, Guangdong,China City Shenzhen Country China to act on our behalf on all matters concerning the application and documents submitted to Micom Labs for product certification below Product Description In-Wall CSR Bluetooth v5.0 Music Receiver Type or Model(s) A-1350WPA Tradename or Brand(s) N/A Attestation: City: Date: Name: (this must be a person) Function: Signature: (or official company stamp) Taiwan 2020/07/23 Jason Wen Manager

Ten Tronics Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2020/07/23 Subject; Request for Confidentiality FCC ID: 2ACIA-TTBT011 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description 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); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR Ten Tronics Co., Ltd For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Jason Wen Title: Ten Tronics Co., Ltd

Page 1 of 3 Report No.: STS2007025 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Photo 1 Photo 2 Page 2 of 3 Report No.: STS2007025 Photo 3 Photo 4 Page 3 of 3 Report No.: STS2007025 Photo 5 Photo 6

FCC Label In-Wall CSR Bluetooth v5.0 Music Receiver Model name: A-1350WPA FCC ID: 2ACIA-TTBT011 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.

Page 1 of 2 Report No.: STS2007025 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Photo 1 Photo 2 BT Antenna Page 2 of 2 Report No.: STS2007025 Photo 3

RF Exposure Report FCC ID: 2ACIA-TTBT011 RF Exposure Measurement The limit for Maximum Permissible Exposure (MPE) specified in FCC 1.1310 is followed. The gain of the antennas used in the product is extracted from the Antenna data sheets provided and also the maximum total power input to the antenna is measured. Through the Friis transmission formula and the maximum gain of the antenna, we can calculate the distance, away from the product, where the limit of MPE is reached. Although the Friis Transmission formula is far field assumption, the calculated result of that is an over-prediction for near field power density. It is taken as worst case to specify the safety range. RF Exposure Limit According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environmental impact of the human exposure to radio-frequency (RF) radiation as specified in 1.1307 (b) Limits for Maximum Permissible Exposure (MPE) F= Frequency in MHz Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm²) Limits for Occupational / controlled Exposures 300 - 1500 -- -- F/300 1500 – 100000 -- -- 5.0 Limits for General population / Uncontrolled Exposure 300 - 1500 -- -- F/1500 1500 – 100000 -- -- 1.0 Friss Formula Friss Transmission Formula: Pd = (Pout * G) / (4*pi*r²) Where Pd = power density in mW/cm² Pout = output power to antenna in mW G = gain of antenna in linear scale Pi = 3.1416 R = Distance between observation point and the center of radiator in cm If we know the maximum gain of the antenna and the total output power to the antenna, through calculation, we will know MPE value at distance 20cm. EUT Operation condition EUT was enabled to transmit and receive at lowest, middle and highest channels. Classification The antenna of this product, under normal use condition, is at least 20cm away from the body of the user. Warning statement to the user for keeping at least 20cm or more separation distance from the antenna should be included in the User manual. So, this device is classified as Mobile device. BT5.0+EDR Mode 2402-2480MHz Detector PEAK GFSK 0±1dBm π/4-DQPSK -1±1dBm 8DPSK -1±1dBm ANT Gain (G) Antenna gain : -2dBi (gain of antenna in linear scale=0.63) GFSK0.632480 11.25890.00016 1 π/4-DQPSK0.632480 01.00000.00013 1 8DPSK0.632480 01.00000.00013 1 Power Density (mW/cm²) Limit (mW/cm²) ANT Gain(gain of antenna in linear scale) Protocol Channel Frequency (MHz) Output Power to Antenna (dBm) Output Power to Antenna (mW) According to the maximum gain of the antenna and the total output power to theantenna, through calculation, we will know max MPE value 0.00016 at distance 20cm. This is less than the limit 1. Compliance the RF exposure requirement..

Any reproduction of this document must be done in full. No single part of this document may be reproduced without permission from STS, All Test Data Presented in this report is only applicable to presented Test sample. Shenzhen STS Test Services Co., Ltd. A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ, Fuyong Sub-District,Bao’an District, Shenzhen, Guang Dong, China TEL: +86-755 3688 6288 FAX: +86-755 3688 6277 E-mail:[email protected] RADIO TEST REPORT Report No.: STS2007025W01 Issued for Ten Tronics Co., Ltd No. 33, Lane 347, Chung-San S. Road, Young-Kang District, Tainan, Taiwan Product Name: In-Wall CSR Bluetooth v5.0 Music Receiver Brand Name: N/A Model Name: A-1350WPA Series Model: N/A FCC ID: 2ACIA-TTBT011 Test Standard: FCC Part 15.247 S T L A B S Page 2 of 73 Report No.: STS2007025W01 TEST RESULT CERTIFICATION Applicant’s Name ................... : Ten Tronics Co., Ltd Address .................................. : No. 33, Lane 347, Chung-San S. Road, Young-Kang District, Tainan, Taiwan Manufacturer's Name ............. : Ten Tronics Co., Ltd Address .................................. : No. 33, Lane 347, Chung-San S. Road, Young-Kang District, Tainan, Taiwan Product Description Product Name ........................ : In-Wall CSR Bluetooth v5.0 Music Receiver Brand Name ........................... : N/A Model Name ........................... : A-1350WPA Series Model .......................... : N/A Test Standards ....................... : FCC Part15.247 Test Procedure ....................... : ANSI C63.10-2013 This device described above has been tested by STS, the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of STS, this document may be altered or revised by STS, personal only, and shall be noted in the revision of the document. Date of Test ................................ : Date of receipt of test item .......... : 08 July 2020 Date (s) of performance of tests . : 08 July 2020 ~ 28 July 2020 Date of Issue .............................. : 28 July 2020 Test Result .................................. : Pass Testing Engineer : (Chris Chen) Technical Manager : (Sean she) Authorized Signatory: (Vita Li) Page 3 of 73 Report No.: STS2007025W01 Table of Contents Page 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.1 GENERAL DESCRIPTION OF THE EUT 8 2.2 DESCRIPTION OF THE TEST MODES 10 2.3 FREQUENCY HOPPING SYSTEM REQUIREMENTS 10 2.4 TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 12 2.5 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 12 2.6 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 13 2.7 EQUIPMENTS LIST 14 3.EMC EMISSION TEST 15 3.1 CONDUCTED EMISSION MEASUREMENT 15 3.2 RADIATED EMISSION MEASUREMENT 19 4. CONDUCTED SPURIOUS & BAND EDGE EMISSION 31 4.1 LIMIT 31 4.2 TEST PROCEDURE 31 4.3 TEST SETUP 31 4.4 EUT OPERATION CONDITIONS 31 4.5 TEST RESULTS 32 5. NUMBER OF HOPPING CHANNEL 47 5.1 LIMIT 47 5.2 TEST PROCEDURE 47 5.3 TEST SETUP 47 5.4 EUT OPERATION CONDITIONS 47 5.5 TEST RESULTS 48 6. AVERAGE TIME OF OCCUPANCY 49 6.1 LIMIT 49 6.2 TEST PROCEDURE 49 6.3 TEST SETUP 49 6.4 EUT OPERATION CONDITIONS 49 6.5 TEST RESULTS 50 7. HOPPING CHANNEL SEPARATION MEASUREMEN 56 Page 4 of 73 Report No.: STS2007025W01 Table of Contents Page 7.1 LIMIT 56 7.2 TEST PROCEDURE 56 7.3 TEST SETUP 56 7.4 EUT OPERATION CONDITIONS 56 7.5 TEST RESULTS 57 8. BANDWIDTH TEST 63 8.1 LIMIT 63 8.2 TEST PROCEDURE 63 8.3 TEST SETUP 63 8.4 EUT OPERATION CONDITIONS 63 8.5 TEST RESULTS 64 9. OUTPUT POWER TEST 70 9.1 LIMIT 70 9.2 TEST PROCEDURE 70 9.3 TEST SETUP 70 9.4 EUT OPERATION CONDITIONS 70 9.5 TEST RESULTS 71 10. ANTENNA REQUIREMENT 72 10.1 STANDARD REQUIREMENT 72 10.2 EUT ANTENNA 72 Page 5 of 73 Report No.: STS2007025W01 Revision History Rev. Issue Date Report NO. Effect Page Contents 00 28 July 2020 STS2007025W01 ALL Initial Issue Page 6 of 73 Report No.: STS2007025W01 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part15.247,Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.247(a)(1) Hopping Channel Separation PASS -- 15.247(a)(1)&(b)(1) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247(d) Conducted Spurious & Band Edge Emission PASS -- 15.247(a)(iii) Number of Hopping Frequency PASS -- 15.247(a)(iii) Dwell Time PASS -- 15.247(a)(1) Bandwidth PASS -- 15.205 Restricted bands of operation PASS -- Part 15.247(d)/part 15.209(a) Band Edge Emission PASS -- 15.203 Antenna Requirement PASS -- NOTE: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2013. Page 7 of 73 Report No.: STS2007025W01 1.1 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ, Fuyong Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ±U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conducted ±0.68dB 2 Unwanted Emissions, conducted ±2.988dB 3 All emissions, radiated 30-1GHz ±5.6dB 4 All emissions, radiated1G-6GHz ±5.5dB 5 All emissions, radiated>6G ±5.8dB 6 Conducted Emission (9KHz-150KHz) ±3.37dB 7 Conducted Emission (150KHz-30MHz) ±3.83dB Page 8 of 73 Report No.: STS2007025W01 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF THE EUT Product Name In-Wall CSR Bluetooth v5.0 Music Receiver Trade Name N/A Model Name A-1350WPA Series Model N/A Mod…

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Page 1 of 2 FCC ID: 2ACIA-TTBT011 DSS Setup photo Model name: A-1350WPA DSS conduction DSS radiation L Page 2 of 2 FCC ID: 2ACIA-TTBT011 DSS radiation H