2AZUI-S100TWS Bluetooth headset

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 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. The device has been evaluated to meet general RF exposure requirement. This equipment can be used in portable exposure condition without restriction.

5/11/2021 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AZUI-S100 Product Name: TWS Bluetooth headset Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential:  Schematics Long-term confidential  Block diagram Long-term confidential  Operation description Long-term confidential These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. Signature: Name Guangping Zhou Position general manager Company Name Shenzhen renhan electronics co., ltd Address 6F, Bld A3, Zhongtai Information Technology Industrial Park, No.2 Dezheng Rd, Shilong community, Shiyan street, Bao'an, Shenzhen Tel +86 18600697999 Fax +86 18600697999 Email [email protected]

Shenzhen renhan electronics co., ltd FCC ID: 2AZUI-S100 Product Name: TWS Bluetooth headset Model No. S100, S200, Pro12 The circuit board, PCB Layout, and components of the earplugs on both sides are identical. Dated this 2021/05/11 By: Guangping Zhou Signature Printed Title: general manager On behalf of : Shenzhen renhan electronics co., ltd Telephone: +86 18600697999

Differences Description We Shenzhen renhan electronics co., ltd. (Singapore) state: Product name: TWS Bluetooth headset Model: S100, S200, Pro12 All model’s the function, software and electric circuit are the same, except the model numbers and appearance color difference. 2021-05-11 Name Guangping Zhou Position general manager Company Name Shenzhen renhan electronics co., ltd Address 6F, Bld A3, Zhongtai Information Technology Industrial Park, No.2 Dezheng Rd, Shilong community, Shiyan street, Bao'an, Shenzhen Tel +86 18600697999 Fax +86 18600697999 Email [email protected] (Signature)

FCC ID: 2AZUI-S100 FCC ID: 2AZUI-S100 FCC ID: 2AZUI-S100 FCC ID: 2AZUI-S100 FCC ID: 2AZUI-S100

FCC ID: 2AZUI-S100

FCC ID: 2AZUI-S100 FCC ID: 2AZUI-S100 FCC ID: 2AZUI-S100 FCC ID: 2AZUI-S100

FCC ID: 2AZUI-S100 RF Exposure evaluation According to 447498 D01 General RF Exposure Guidance v05 The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(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 Worse case is as below: [2402MHz: -6.526dBm(0.223 mW) output power] (0.223mW /5mm) ·[√2.402 (GHz)]= 0.069 <3.0 for 1-g SAR Then SAR evaluation is not required

FCC TEST REPORT FCC ID: 2AZUI-S100 On Behalf of Shenzhen renhan electronics co., ltd TWS Bluetooth headset Model No.: S100, S200, Pro12 Prepared for : Shenzhen renhan electronics co., ltd Address : 6F, Bld A3, Zhongtai Information Technology Industrial Park, No.2 Dezheng Rd, Shilong community, Shiyan street, Bao’an, Shenzhen Prepared By : Shenzhen Alpha Product Testing Co., Ltd. Address : Building i, No.2, Lixin Road, Fuyong Street, Bao’an District, 518103, Shenzhen, Guangdong, China Report Number : A2104196-C01-R03 Date of Receipt : April 26, 2021 Date of Test : April 26, 2021- May 10, 2021 Date of Report : May 10, 2021 Version Number : V0 Page 2 of 74 Report No.: A2104196-C01-R03 TABLE OF CONTENTS Description Page 1. Summary Of Standards And Results ................................................................................................... 6 1.1. Description of Standards and Results .......................................................................... 6 2. General Information .............................................................................................................................. 7 2.1. Description of Device (EUT) ....................................................................................... 7 2.2. Accessories of Device (EUT) ...................................................................................... 8 2.3. Tested Supporting System Details ............................................................................... 8 2.4. Block Diagram of connection between EUT and simulators ...................................... 8 2.5. Test Mode Description ................................................................................................. 8 2.6. Test Conditions ............................................................................................................ 8 2.7. Test Facility ................................................................................................................. 9 2.8. Measurement Uncertainty ............................................................................................ 9 2.9. Test Equipment List ................................................................................................... 10 3. Maximum Peak Output Power ........................................................................................................... 11 3.1. Limit .......................................................................................................................... 11 3.2. Test Procedure ........................................................................................................... 11 3.3. Test Setup ................................................................................................................... 11 3.4. Test Result ................................................................................................................. 11 4. Bandwidth ............................................................................................................................................. 12 4.1. Limit .......................................................................................................................... 12 4.2. Test Procedure ........................................................................................................... 12 4.3. Test Result ................................................................................................................. 12 5. Carrier Frequency Separation ............................................................................................................ 22 5.1. Limit .......................................................................................................................... 22 5.2. Test Procedure ........................................................................................................... 22 5.3. Test Result ................................................................................................................. 22 6. Number Of Hopping Channel ............................................................................................................. 24 6.1. Limit .......................................................................................................................... 24 6.2. Test Procedure ........................................................................................................... 24 6.3. Test Result ................................................................................................................. 24 7. Dwell Time ............................................................................................................................................ 26 7.1. Test limit .................................................................................................................... 26 7.2. Test Procedure ........................................................................................................... 26 7.3. Test Result ................................................................................................................. 26 8. Radiated Emissions .............................................................................................................................. 35 8.1. Limit .......................................................................................................................... 35 8.2. Block Diagram of Test setup ..................................................................................... 36 8.3. Test Procedure ........................................................................................................... 37 8.4. Test Result ................................................................................................................. 37 9. Band Edge Compliance ....................................................................................................................... 43 Page 3 of 74 Report No.: A2104196-C01-R03 9.…

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FCC ID: 2AZUI-S100 Radiated Emission FCC ID: 2AZUI-S100 Conducted Emission