2AL9B-HD35TWSWireless Earbuds

Using Your Earbuds:Call controls Press twice the left earbud's Multifunction button to reduce the music volume. Press twice the right earbud's Multifunction button to increase the music volume. X2 V- X2 V+ 1. When there is an incoming call, press either earbud’s Multi-function button to accept call. 2. Press either earbud’s Multi-function button to end call. 3. Press and hold either earbud’s Multifunction button for approximately 2 seconds to reject call. USER’S MANUAL: It em HD35-TWS-CL Wir eless Earphones Driver Diameter: 13mm Bluetooth Version: 5.3 Transmission distance: 10m Batt ery capacity (Earbuds): 25 mAh Batt ery capacity (Case): 200 mAh Charging input: DC 5V 1A (max) Play time: 3-4 Hours** ** true wireless earphones FCCID: 2AL9B-HD35TWS Charging Port LED Indicator Multi-function button (T ouch Control) LED Indicator Insert one end of the included USB charging cable into the charging port on your case. The LED Indicator will flash red while the case is charging and turn blue solid red when fully charged. If earbuds are charging inside, the TWS Earbuds 3. On your phone, go to the Bluetooth page in the FCC Compliance Statements settings app. Make sure Bluetooth is on befor e connecting to the available device, “TWS Earbuds”. 1. Remove the earbuds from the case, and they will automatically turn on. 2. In pairing mode, one earbud will flash 4. Both earbud’s LED indicators will stop flashing once paired to your phone. 1. Pres s either earbud’s Multi-function button to pause/play. Pr es s and hold for approximately 3 2. Pres s and hold the left earbud’s Multi-function button to go back to the pr evious song. 3. Pres s and hold the right earbud’s Multi-function button to go to the next song. 4. Pres s either earbud’s Multi-function button three times to activate voice assistant. Insert the other end of the USB cable into a suitable USB charging adapter (not included). Charging case LED Indicator Case Charging: Earbuds Charging: Earbuds Charged: Case Charged: 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. Note: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:Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. FCC Radiation Exposure Statement: The device has been evaluated to meet general RF exposure requirement. The device can be used in the portable exposure condition without restriction. Using Your Earbuds:Call controls Press twice the left earbud's Multifunction button to reduce the music volume. Press twice the right earbud's Multifunction button to increase the music volume. X2 V- X2 V+ 1. When there is an incoming call, press either earbud’s Multi-function button to accept call. 2. Press either earbud’s Multi-function button to end call. 3. Press and hold either earbud’s Multifunction button for approximately 2 seconds to reject call. USER’S MANUAL: It em HD35-TWS-SB Wir eless Earphones Driver Diameter: 13mm Bluetooth Version: 5.3 Transmission distance: 10m Batt ery capacity (Earbuds): 25 mAh Batt ery capacity (Case): 200 mAh Charging input: DC 5V 1A (max) Play time: 3-4 Hours** ** true wireless earphones FCCID: 2AL9B-HD35TWS Charging Port LED Indicator Multi-function button (T ouch Control) LED Indicator Insert one end of the included USB charging cable into the charging port on your case. The LED Indicator will flash red while the case is charging and turn blue solid red when fully charged. If earbuds are charging inside, the TWS Earbuds 3. On your phone, go to the Bluetooth page in the FCC Compliance Statements settings app. Make sure Bluetooth is on befor e connecting to the available device, “TWS Earbuds”. 1. Remove the earbuds from the case, and they will automatically turn on. 2. In pairing mode, one earbud will flash 4. Both earbud’s LED indicators will stop flashing once paired to your phone. 1. Pres s either earbud’s Multi-function button to pause/play. Pr es s and hold for approximately 3 2. Pres s and hold the left earbud’s Multi-function button to go back to the pr evious song. 3. Pres s and hold the right earbud’s Multi-function button to go to the next song. 4. Pres s either earbud’s Multi-function button three times to activate voice assistant. Insert the other end of the USB cable into a suitable USB charging adapter (not included). Charging case LED Indicator Case Charging: Earbuds Charging: Earbuds Charged: Case Charged: 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. Note:This equipment has been tested and fou…

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SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED ROOM 3110, BLOCK C, XINTIAN CENTURY BUSINESS CENTRE, FUMING ROAD, FUTIAN DISTRICT, SHENZHEN, China 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – Equipment Type Company name: SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED Address: ROOM 3110, BLOCK C, XINTIAN CENTURY BUSINESS CENTRE, FUMING ROAD, FUTIAN DISTRICT, SHENZHEN, China Product Name: Wireless Earbuds FCC ID: 2AL9B-HD35TWS Model(s): HD35-TWS, HD35-TWS-CL, HD35-TWS-SB, HD35-TWS-CC 2.911(d)(5)(i) Equipment Type We, SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED (“the applicant”) certify that the equipment for which authorization is sought through certification is not: • Prohibited from receiving an equipment authorization pursuant to § 2.903; of the FCC rules. • Identified as an equipment type in the “Covered List” NOTE 1 Yours sincerely, Date: December 27, 2024 Name: Leo Guo Title: Manager Company: SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED NOTE 1 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED ROOM 3110, BLOCK C, XINTIAN CENTURY BUSINESS CENTRE, FUMING ROAD, FUTIAN DISTRICT, SHENZHEN, China 2.911 (d)(5)(ii) Applicant Attestation v1.3 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED Address: ROOM 3110, BLOCK C, XINTIAN CENTURY BUSINESS CENTRE, FUMING ROAD, FUTIAN DISTRICT, SHENZHEN, China Product Name: Wireless Earbuds FCC ID: 2AL9B-HD35TWS Model(s): HD35-TWS, HD35-TWS-CL, HD35-TWS-SB, HD35-TWS-CC 2.911(d)(5)(ii) Applicant filing We, SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED (“the applicant”) certify that, as of the date of the filing of the application, the applicant is is not identified on the “Covered List” NOTE 1 , established pursuant to § 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Signature: Date: 2024/12/27 Name: Leo Guo Title: Manager Company: SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED NOTE 1 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the- communications-supply-chain-through-the

[Shenzhen Shenglai Technology Co., Ltd] [Room 3110, Block C, Xintian Century Business Centre, Fuming Road, Futian, Shenzhen] [China] Date: 2024.12.20 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AL9B-HD35TWS FRN: 0026557025 US Agent – Attestation Statement / Part 2.911(d)(7) [Shenzhen Shenglai Technology Co., Ltd] certifies, that as of [2024.12.20] , we have designated Sakar International Inc. to accept service of process on our behalf for FCC ID: 2AL9B-HD35TWS . [Shenzhen Shenglai Technology Co., Ltd], accepts to maintain an agent of service of process in the United States for no less than one year after her 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 proeitceeding involving the equipment, whichever is later. Sakar International Inc. , 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 [Shenzhen Shenglai Technology Co., Ltd] for FCC ID: 2AL9B-HD35TWS . Designated Agent Information: Company Name: Sakar Interna�onal Inc. FRN: 0028102671 Address: 195 Carter Drive Edison, Edison,NJ 8817 United States Contact Person: DAWN LEITAO Phone: （800）637-1090 Email:[email protected] Sincerely, Company: [Shenzhen Shenglai Technology Co., Ltd] Designated Agent: [Sakar Interna�onal Inc.] Company Representative: [Leo Guo ] Designated Agent Representative: [DAWN LEITAO] Si gnature: Si gnature:

SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED ROOM 3110, BLOCK C, XINTIAN CENTURY BUSINESS CENTRE, FUMING ROAD, FUTIAN DISTRICT, SHENZHEN, China Date: 2024/12/27 Dear Sir/Madam, We, SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED, Hereby declares the following statement, PCB board, circuit, structure and internal of these model(s) are the same, Only model number is different for these model: Product name: Wireless Earbuds Model no.: HD35-TWS, HD35-TWS-CL, HD35-TWS-SB, HD35-TWS-CC Sincerely, Name/Title： Leo Guo / Manager Company: SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED Address: ROOM 3110, BLOCK C, XINTIAN CENTURY BUSINESS CENTRE, FUMING ROAD, FUTIAN DISTRICT, SHENZHEN, China Phone: +86-755-82324457 Fax: +86-755-82324457 E-Mail: [email protected]

SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED ROOM 3110, BLOCK C, XINTIAN CENTURY BUSINESS CENTRE, FUMING ROAD, FUTIAN DISTRICT, SHENZHEN, China Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2024/12/27 Subject; Request for Confidentiality FCC ID: 2AL9B-HD35TWS 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 Tune-up Procedure 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 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: Leo Guo Title: Manager

SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED ROOM 3110, BLOCK C, XINTIAN CENTURY BUSINESS CENTRE, FUMING ROAD, FUTIAN DISTRICT, SHENZHEN, China Letter of Authorization Company name: SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED Address: ROOM 3110, BLOCK C, XINTIAN CENTURY BUSINESS CENTRE, FUMING ROAD, FUTIAN DISTRICT, SHENZHEN, China Product Name: Wireless Earbuds FCC ID: 2AL9B-HD35TWS Model(s): HD35-TWS, HD35-TWS-CL, HD35-TWS-SB, HD35-TWS-CC Product Description: Wireless Earbuds 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: 2024/12/27 Name: Leo Guo Title: Manager Company: SHENZHEN SHENGLAI TECHNOLOGY CO.,LIMITED

FCC ID:2AL9B-HD35TWS Page 1 of 5 External Photographs of EUT Fig.1 Fig.2 FCC ID:2AL9B-HD35TWS Page 2 of 5 Fig.3 Fig.4 FCC ID:2AL9B-HD35TWS Page 3 of 5 Fig.5 Fig.6 FCC ID:2AL9B-HD35TWS Page 4 of 5 Fig.7 Fig.8 FCC ID:2AL9B-HD35TWS Page 5 of 5 Fig.9

Label Location FCC ID: 2AL9B-HD35TWS

FCC ID:2AL9B-HD35TWS Page 1 of 3 Internal Photographs of EUT Fig.1 Fig.2 FCC ID:2AL9B-HD35TWS Page 2 of 3 Fig.3 Fig.4 Bluetooth antenna FCC ID:2AL9B-HD35TWS Page 3 of 3 Fig.5

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 3 RADIO FREQUENCY EXPOSURE Limit According to section B.4 of 447498 D04 Interim General RF Exposure Guidance v01 SAR-based thresholds are derived based on frequency, power, and separation distance of the RF source. The formula defines the thresholds in general for either available maximum time-averaged power or maximum time-averaged ERP, whichever is greater. If the ERP of a device is not easily determined, such as for a portable device with a small form factor, the applicant may use the available maximum time-averaged power exclusively if the device antenna or radiating structure does not exceed an electrical length of λ/4. As for devices with antennas of length greater than λ/4 where the gain is not well defined, but always less than that of a half-wave dipole (length λ/2), the available maximum time-averaged power generated by the device may be used in place of the maximum time-averaged ERP, where that value is not known. The separation distance is the smallest distance from any part of the antenna or radiating structure for all persons, during operation at the applicable ERP. In the case of mobile or portable devices, the separation distance is from the outer housing of the device where it is closest to the antenna. The SAR-based exemption formula of § 1.1307(b)(3)(i)(B), repeated here as Formula (B.2), applies for single fixed, mobile, and portable RF sources with available maximum time-averaged power or effective radiated power (ERP), whichever is greater, of less than or equal to the threshold Pth (mW). This method shall only be used at separation distances from 0.5 cm to 40 cm and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by Formula (B.2). Where and f is in GHz, d is the separation distance (cm), and ERP 20cm is per Formula (B.1). Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 3 The example values shown in Table B.2 are for illustration only. Frequency (MHz) Distance (mm) 5 10 15 20 25 30 35 40 45 50 300 39 65 88 110 129 148 166 184 201 217 450 22 44 67 89 112 135 158 180 203 226 835 9 25 44 66 90 116 145 175 207 240 1900 3 12 26 44 66 92 122 157 195 236 2450 3 10 22 38 59 83 111 143 179 219 3600 2 8 18 32 49 71 96 125 158 195 5800 1 6 14 25 40 58 80 106 136 169 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 3 Conducted Power Results Test Mode Antenna Frequency[MHz] Result[dBm] DH5 Ant1 2402 -1.76 DH5 Ant1 2441 -2.08 DH5 Ant1 2480 -3.10 2DH5 Ant1 2402 -1.08 2DH5 Ant1 2441 -1.58 2DH5 Ant1 2480 -2.66 3DH5 Ant1 2402 -0.74 3DH5 Ant1 2441 -1.08 3DH5 Ant1 2480 -2.17 Manufacturing tolerance GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -2.5 -2.5 -3.5 Tolerance ±(dB) 1 1 1 π/4-DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -1.5 -2 -3 Tolerance ±(dB) 1 1 1 8-DPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -1 -1.5 -2.5 Tolerance ±(dB) 1 1 1 Results Test Mode Max Conducted Tune Up Power(dBm) Max of ERP and Conducted Power including Tune Up (dBm) Max of ERP and Conducted Power including Tune Up (mW) Exemption Limit(mW) GFSK -1.5 -1.5 0.71 3 π/4-DQPSK -0.5 -0.5 0.89 3 8DPSK 0 0.0 1.00 3 Max of ERP and Conducted Power including Tune Up (dBm) = Max Conducted Tune Up Power(dBm) and Max Conducted Tune Up Power(dBm) + Antenna Gain(dBi)-2.15), whichever is greater. The antenna gain of the EUT for BT is 0 dBi (Max). the Maximum Eirp is used for Routine Evaluation Exemption according to B.4 of 447498 D04 Interim General RF Exposure Guidance v01. So, the SAR evaluation is not required.

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 3 RADIO FREQUENCY EXPOSURE Limit According to section B.4 of 447498 D04 Interim General RF Exposure Guidance v01 SAR-based thresholds are derived based on frequency, power, and separation distance of the RF source. The formula defines the thresholds in general for either available maximum time-averaged power or maximum time-averaged ERP, whichever is greater. If the ERP of a device is not easily determined, such as for a portable device with a small form factor, the applicant may use the available maximum time-averaged power exclusively if the device antenna or radiating structure does not exceed an electrical length of λ/4. As for devices with antennas of length greater than λ/4 where the gain is not well defined, but always less than that of a half-wave dipole (length λ/2), the available maximum time-averaged power generated by the device may be used in place of the maximum time-averaged ERP, where that value is not known. The separation distance is the smallest distance from any part of the antenna or radiating structure for all persons, during operation at the applicable ERP. In the case of mobile or portable devices, the separation distance is from the outer housing of the device where it is closest to the antenna. The SAR-based exemption formula of § 1.1307(b)(3)(i)(B), repeated here as Formula (B.2), applies for single fixed, mobile, and portable RF sources with available maximum time-averaged power or effective radiated power (ERP), whichever is greater, of less than or equal to the threshold Pth (mW). This method shall only be used at separation distances from 0.5 cm to 40 cm and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by Formula (B.2). Where and f is in GHz, d is the separation distance (cm), and ERP 20cm is per Formula (B.1). Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 3 The example values shown in Table B.2 are for illustration only. Frequency (MHz) Distance (mm) 5 10 15 20 25 30 35 40 45 50 300 39 65 88 110 129 148 166 184 201 217 450 22 44 67 89 112 135 158 180 203 226 835 9 25 44 66 90 116 145 175 207 240 1900 3 12 26 44 66 92 122 157 195 236 2450 3 10 22 38 59 83 111 143 179 219 3600 2 8 18 32 49 71 96 125 158 195 5800 1 6 14 25 40 58 80 106 136 169 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 3 Conducted Power Results Test Mode Antenna Frequency[MHz] Result[dBm] DH5 Ant1 2402 -1.76 DH5 Ant1 2441 -2.08 DH5 Ant1 2480 -3.10 2DH5 Ant1 2402 -1.08 2DH5 Ant1 2441 -1.58 2DH5 Ant1 2480 -2.66 3DH5 Ant1 2402 -0.74 3DH5 Ant1 2441 -1.08 3DH5 Ant1 2480 -2.17 Manufacturing tolerance GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -2.5 -2.5 -3.5 Tolerance ±(dB) 1 1 1 π/4-DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -1.5 -2 -3 Tolerance ±(dB) 1 1 1 8-DPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -1 -1.5 -2.5 Tolerance ±(dB) 1 1 1 Results Test Mode Max Conducted Tune Up Power(dBm) Max of ERP and Conducted Power including Tune Up (dBm) Max of ERP and Conducted Power including Tune Up (mW) Exemption Limit(mW) GFSK -1.5 -1.5 0.71 3 π/4-DQPSK -0.5 -0.5 0.89 3 8DPSK 0 0.0 1.00 3 Max of ERP and Conducted Power including Tune Up (dBm) = Max Conducted Tune Up Power(dBm) and Max Conducted Tune Up Power(dBm) + Antenna Gain(dBi)-2.15), whichever is greater. The antenna gain of the EUT for BT is 0 dBi (Max). the Maximum Eirp is used for Routine Evaluation Exemption according to B.4 of 447498 D04 Interim General RF Exposure Guidance v01. So, the SAR evaluation is not required.

天线规格书 Antenna Specific 制造商(Manufacturer) ： Shenzhen Ouchao Technology Co., Ltd 地址(address) ： 303, Building 34, Longzhu Garden, Xixiang Street, Bao’an District, Shenzhen, China. 产品种类：Internal Antenna Product Type: Internal Antenna 产品技术指标(Technical parameter) Electronic Parameter 频率范围(Frequency Range) 2400~2500MHz 输入阻抗(input impedance) 50Ω 驻波比(VSWR) ≤2 增益(Gain) Max 0.0dBi Physical Parameter 材料(Material) PCB/Cu 工作温度(operation temperature) -30°C~+80°C 储存温度(store temperature) -30°C~+80°C 产品规格图(Antenna Specification chart) Test Result: Frequency Gain.dBi Frequency Efficiency 2400MHz -0.31 2400MHz 28% 2450MHz 0.0 2450MHz 31% 2500MHz -0.71 2500MHz 36% Direction: Smith Chart: VSWR:

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 1 of 46 Appendix Test Data for BT(BDR/EDR) (Conducted Measurement) Product Name: Wireless Earbuds Trade Mark: Vivitar, Target Test Model: HD35-TWS FCC ID: 2AL9B-HD35TWS Environmental Conditions Temperature: 23.5°C Relative Humidity: 58% ATM Pressure: 100.0 kPa Test Engineer: Allen Lai Supervised by: Hugo Chen NOTE N/A Appendix A: 20dB Emission Bandwidth Test Result Test Mode Antenna Frequency [MHz] 20db EBW [MHz] FL [MHz] FH [MHz] Limit [MHz] Verdict DH5 Ant1 2402 0.936 2401.523 2402.459 --- --- DH5 Ant1 2441 0.957 2440.511 2441.468 --- --- DH5 Ant1 2480 0.945 2479.517 2480.462 --- --- 2DH5 Ant1 2402 1.284 2401.346 2402.630 --- --- 2DH5 Ant1 2441 1.278 2440.346 2441.624 --- --- 2DH5 Ant1 2480 1.275 2479.349 2480.624 --- --- 3DH5 Ant1 2402 1.290 2401.328 2402.618 --- --- 3DH5 Ant1 2441 1.284 2440.328 2441.612 --- --- 3DH5 Ant1 2480 1.296 2479.328 2480.624 --- --- Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 2 of 46 Test Graphs DH5-Ant1-2402 DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 3 of 46 DH5-Ant1-2480 2DH5-Ant1-2402 2DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 4 of 46 2DH5-Ant1-2480 3DH5-Ant1-2402 3DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 5 of 46 3DH5-Ant1-2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 6 of 46 Appendix B: Occupied Channel Bandwidth Test Result Test Mode Antenna Frequency [MHz] OCB [MHz] FL [MHz] FH [MHz] Limit [MHz] Verdict DH5 Ant1 2402 0.86994 2401.5441 2402.4141 --- --- DH5 Ant1 2441 0.88025 2440.5401 2441.4204 --- --- DH5 Ant1 2480 0.85303 2479.5458 2480.3989 --- --- 2DH5 Ant1 2402 1.1695 2401.3901 2402.5596 --- --- 2DH5 Ant1 2441 1.1720 2440.3896 2441.5616 --- --- 2DH5 Ant1 2480 1.1709 2479.3886 2480.5595 --- --- 3DH5 Ant1 2402 1.1721 2401.3931 2402.5652 --- --- 3DH5 Ant1 2441 1.1825 2440.3875 2441.5700 --- --- 3DH5 Ant1 2480 1.1799 2479.3885 2480.5684 --- --- Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 7 of 46 Test Graphs DH5-Ant1-2402 DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 8 of 46 DH5-Ant1-2480 2DH5-Ant1-2402 2DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 9 of 46 2DH5-Ant1-2480 3DH5-Ant1-2402 3DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 10 of 46 3DH5-Ant1-2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 11 of 46 Appendix C: Maximum peak conducted output power Test Result Test Mode Antenna Frequency [MHz] Conducted Peak Power [dBm] Conducted Limit [dBm] Verdict DH5 Ant1 2402 -1.76 ≤30 PASS DH5 Ant1 2441 -2.08 ≤30 PASS DH5 Ant1 2480 -3.10 ≤30 PASS 2DH5 Ant1 2402 -1.08 ≤20.97 PASS 2DH5 Ant1 2441 -1.58 ≤20.97 PASS 2DH5 Ant1 2480 -2.66 ≤20.97 PASS 3DH5 Ant1 2402 -0.74 ≤20.97 PASS 3DH5 Ant1 2441 -1.08 ≤20.97 PASS 3DH5 Ant1 2480 -2.17 ≤20.97 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 12 of 46 Test Graphs DH5-Ant1-2402-PASS DH5-Ant1-2441-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 13 of 46 DH5-Ant1-2480-PASS 2DH5-Ant1-2402-PASS 2DH5-Ant1-2441-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 14 of 46 2DH5-Ant1-2480-PASS 3DH5-Ant1-2402-PASS 3DH5-Ant1-2441-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 15 of 46 3DH5-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 16 of 46 Appendix D: Carrier frequency separation Test Result Test Mode Antenna Frequency [MHz] Result [MHz] Limit [MHz] Verdict DH5 Ant1 Hop 1.006 ≥0.951 PASS 2DH5 Ant1 Hop 1.068 ≥0.884 PASS 3DH5 Ant1 Hop 0.98 ≥0.864 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 17 of 46 Test Graphs DH5-Ant1-Hop-PASS 2DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 18 of 46 3DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 19 of 46 Appendix E: Time of occupancy Test Result Test Mode Antenna Frequency [MHz] Burst Width [ms] TotalHops [Num] Result [s] Limit [s] Verdict DH5 Ant1 Hop 2.911 100 0.291 ≤0.4 PASS 2DH5 Ant1 Hop 2.917 110 0.321 ≤0.4 PASS 3DH5 Ant1 Hop 2.921 80 0.234 ≤0.4 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 20 of 46 Test Graphs DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 21 of 46 2DH5-Ant1-Hop-PASS 3DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 22 of 46 Appendix F: Number of hopping channels Test Result Test Mode Antenna Frequency [MHz] Result [Num] Limit [Num] Verdict DH5 Ant1 Hop 79 ≥15 PASS 2DH5 Ant1 Hop 79 ≥15 PASS 3DH5 Ant1 Hop 79 ≥15 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 23 of 46 Test Graphs DH5-Ant1-Hop-PASS 2DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 24 of 46 3DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AL9B-HD35TWS Report No.: TZ0061241201FRF01 Page 25 of 46 Appendix G: Band edge measurements Test Result Test Mode Antenna Ch.Name Frequency [MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH5 Ant1 Low 2402 -2.56 -50.06 ≤-22.56 PASS DH5 Ant1 High 2480 -4.11 -49.53 ≤-24.11 PASS DH5 Ant1 Low Hop_2402 -3.27 -50.14 ≤-23.27 PASS DH5…

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