2A8NV-ES22TWS Earbuds

Charge the earbuds Technical Parameters charged. indicator light turis off after the earphone is fuly' 3.Earbuds full charge time:1.5 hours,the charging light display. automatically enter the charging mode and the cbse the charging base cover, the earbuds will 2. Put the LRearbuds in the charging base and once the batery level is too low. 1. Earbuds will prompt out low battery voice alert 8.Working hours: Earbuds: 4H;charging base: charging gycle: 4 tmes 7.Working range:10M 6.Bluetooth version: V5.0 5.Sensitivity: 99+- 3dB 5.Frequency response range:20HZ-20KHZ 4.Battery capacity earbud battery 40mAh, charging base battery 400mAh 3.Battery type: buit-in rechargeable ithium battery 2.Input charging voltage and curent:5V/1000MA 1.Chip solution:Actons ATTENTION Reset to factory default showed on the manual coud be changed wihout pprior notice. With the software and hardware updated, al the technical data and the mode of operation base, long press the reset button of the charging base,also can reset to factory default After resetting take out the earbuds for repairing. default if you encounter pairing problems.When the earbuds off, tap and hold for 10 seconds to reset them to factory default Put them back to the charging base and take out again for painng. 2. Put the earbuds into the charging 1. You can resetearbuds to factory Security warning: is low. maximum volume on, to avoid injury of your hearing. 5.In any emergency, Cut off the powerimmediately 6.To always have a better performance,please charge in time once the battery this apparatus to the rain or moisture. 2.Do not throw away or disassemble for repair as it may cause safety problem 3.Built-in ithium battery,do not discard or put itinto a fre 4.Foryour health and to extend the life of the product, beter not to keep 1.Please store and use the produc under normal temperature, do not expose FCC Compliance Statement: 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.Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digitaldevice, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonableprotection against harmful interference in a residential installation. This equipment generates, uses 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. FCC Radiation Exposure Statement The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction

Shenzhen E-Ran Technology Co., Ltd. 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – Equipment Type Company name: Shenzhen E-Ran Technology Co., Ltd. Address: Room 201, Plant No.34, Zhangyi Residential Quarter, Junzibu Community, Guanlan Street, Longhua District, Shenzhen Product Name: TWS Earbuds FCC ID: 2A8NV-ES22 Model(s): ES22 2.911(d)(5)(i) Equipment Type We, [Shenzhen E-Ran Technology Co., Ltd. ] 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, Name: Robert Ruan Date: Feb.08,2023 Title and Company name: Product Manager / Shenzhen E-Ran Technology Co., Ltd. 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 E-Ran Technology Co., Ltd. 2.911 (d)(5)(ii) Applicant Attestation v1.2 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: Shenzhen E-Ran Technology Co., Ltd. Address: Room 201, Plant No.34, Zhangyi Residential Quarter, Junzibu Community, Guanlan Street, Longhua District, Shenzhen Product Name: TWS Earbuds FCC ID: 2A8NV-ES22 Model(s): ES22 2.911(d)(5)(ii) Applicant filing We, [Shenzhen E-Ran Technology Co., Ltd. ] certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the “Covered List” NOTE 2 , established pursuant to § 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name: Robert Ruan Date: Feb.08,2023 Title and Company name: Product Manager / Shenzhen E-Ran Technology Co., Ltd. NOTE 1 Delete option not applicable to this application. NOTE 2 “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 E-Ran Technology Co., Ltd. 2.911 (d)(7)USA Agent v1.2 Section 2.911(d)(7) USA Agent for Service of Process Company name: Shenzhen E-Ran Technology Co., Ltd. Address: Room 201, Plant No.34, Zhangyi Residential Quarter, Junzibu Community, Guanlan Street, Longhua District, Shenzhen Product Name: TWS Earbuds FCC ID: 2A8NV-ES22 Model(s): ES22 2.911(d)(7) USA Designated Agent for Service of Process We, [Shenzhen E-Ran Technology Co., Ltd. ] designate [PROMOTERK LLC] NOTE1 for the purpose of accepting service of process on behalf of the applicant. Applicant consent: We Acknowledge our consent to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address of the designated agent and acknowledge our acceptance of our 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. Agent obligation: We Acknowledge our obligation to accept service of process in the United States for matters related to the applicable equipment at our physical U.S. address and email address 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. USA Agent Company name: PROMOTERK LLC Address: 1750 N Florida Mango Rd , Suite408 West Palm Beach, FL33408 FRN: 0033505504 Contact Name: Kathy Telephone No: 909 516 3088 Email:[email protected] Applicant Company name: Shenzhen E-Ran Technology Co., Ltd. Address: oom 201, Plant No.34, Zhangyi Residential Quarter, Junzibu Community, Guanlan Street, Longhua District, Shenzhen FCC Grantee Code: 2A8NV Contact Name: Robert Ruan Telephone No: 17302623056 Email: [email protected] Shenzhen E-Ran Technology Co., Ltd. 2.911 (d)(7)USA Agent v1.2 Signature: Title:General Manager Signature: Title: Product Manager Date:Feb.08,2023 Date: Feb.08,2023 NOTE 1: An applicant located in the United States may designate itself as the agent for service of process. Reference; Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the

Shenzhen E-Ran Technology Co., Ltd. Agent Authorization Company: Shenzhen E-Ran Technology Co., Ltd. Address: Room 201, Plant No.34, Zhangyi Residential Quarter, Junzibu Community, Guanlan Street, Longhua District, Shenzhen Product Name: TWS Earbuds Model Number(s): ES22 Product Description: TWS 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: 2023.1.30 Name: Robert Ruan Title: Product Manager Company: Shenzhen E-Ran Technology Co., Ltd.

Shenzhen E-Ran Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: February 8, 2023 Subject; Request for Confidentiality FCC ID: 2A8NV-ES22 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 Software Security Requirements for UNII devices 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: Robert Ruan Title: Product Manager

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Label location Label (Size:5*10mm) Label location FCC ID: 2A8NV-ES22

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FCC ID: 2A8NV-ES22 RF Exposure Evaluation TEST STANDARDS Follow the maximum permissible exposure (MPE) limits specified in 447498 D04 Interim General Radio Frequency Exposure Guidelines v01. The gain of the antenna used in the product was extracted from the supplied antenna data sheet and the maximum total power input to the antenna was also measured. Calculate the distance from the product to the MPE limit by the formula. LIMIT For single RF sources (i.e., any single fixed RF source, mobile device, or portable device, as defined in paragraph (b)(2) of this section): A single RF source is exempt if: (A) The available maximum time-averaged power is no more than 1 mW, regardless of separation distance. This exemption may not be used in conjunction with other exemption criteria other than those in paragraph (b)(3)(ii)(A) of Part 1.1307. Medical implant devices may only use this exemption and that in paragraph (b)(3)(ii)(A); (B) Or the available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold Pth (mW) described in the following formula. This method shall only be used at separation distances (cm) from 0.5 centimeters to 40 centimeters and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by: (C) Or using below table and the minimum separation distance (R in meters) from the body of a nearby person for the frequency (f in MHz) at which the source operates, the ERP (watts) is no more than the calculated value prescribed for that frequency. For the exemption in Table 1 to apply, R must be at least λ/2π, where λ is the free-space operating wavelength in meters. If the ERP of a single RF source is not easily obtained, then the available maximum time-averaged power may be used in lieu of ERP if the physical dimensions of the radiating structure(s) do not exceed the electrical length of λ/4 or if the antenna gain is less than that of a half-wave dipole (1.64 linear value). FCC ID: 2A8NV-ES22 For multiple RF sources: Multiple RF sources are exempt if: (A) The available maximum time-averaged power of each source is no more than 1 mW and there is a separation distance of two centimeters between any portion of a radiating structure operating and the nearest portion of any other radiating structure in the same device, except if the sum of multiple sources is less than 1 mW during the time-averaging period, in which case they may be treated as a single source (separation is not required). This exemption may not be used in conjunction with other exemption criteria other than those is paragraph (b)(3)(i)(A) of Part 1.1307. Medical implant devices may only use this exemption and that in paragraph (b)(3)(i)(A). (B) in the case of fixed RF sources operating in the same time-averaging period, or of multiple mobile or portable RF sources within a device operating in the same time averaging period, if the sum of the fractional contributions to the applicable thresholds is less than or equal to 1 as indicated in the following equation. Where: a = number of fixed, mobile, or portable RF sources claiming exemption using paragraph (b)(3)(i)(B) of Part 1.1307 for Pth, including existing exempt transmitters and those being added. b = number of fixed, mobile, or portable RF sources claiming exemption using paragraph (b)(3)(i)(C) of Part 1.1307 for Threshold ERP, including existing exempt transmitters and those being added. c = number of existing fixed, mobile, or portable RF sources with known evaluation for the specified minimum distance including existing evaluated transmitters. Pi = the available maximum time-averaged power or the ERP, whichever is greater, for fixed, mobile, or portable RF source i at a distance between 0.5 cm and 40 cm (inclusive). Pth,i = the exemption threshold power (Pth) according to paragraph (b)(3)(i)(B) of this section for fixed, mobile, or portable RF source i. FCC ID: 2A8NV-ES22 ERPj = the ERP of fixed, mobile, or portable RF source j. ERPth,j = exemption threshold ERP for fixed, mobile, or portable RF source j, at a distance of at least λ/2π according to the applicable formula of paragraph (b)(3)(i)(C) of Part 1.1307. Evaluatedk = the maximum reported SAR or MPE of fixed, mobile, or portable RF source k either in the device or at the transmitter site from an existing evaluation at the location of exposure. Exposure Limitk = either the general population/uncontrolled maximum permissible exposure (MPE) or specific absorption rate (SAR) limit for each fixed, mobile, or portable RF source k, as applicable from § 1.1310. Test Result of RF Exposure Evaluation Protocol Fre. (GHz) Output power (dBm) Tune-up power (dBm) Max tune-up power (dBm) ANT Gain ( dBi) Max EIRP (dBm) Max EIRP (mW) Separation distance (cm) Limit (mW) Result BT 2.402 -0.56 0±1 1 2.0 3.0 2.0 0.5 2.76 PASS Note: 1. This device is portable device. 2. The source of the evaluation data results is based on the test report ET-23010030E 3. The Maxinum power is less than the limit, complies with the exemption requirements.

Antenna specification 1. Project information 1.1 Appearance and Dimensions Symbol Dimension(mm) L 5.2±0.2 W 2.2±0.2 T 1.0±0.2 S 0.5±0.2 1.2 1.2 Matching circuit With the following recommended values of matching and tuning components the center frequencies will be about 2440MHz at our standard 30*40mm evaluation board. However,these are typical refenerce values. Which way need to be changed when circuit boards or part vendors are deffierent. System matching circuit component Location Description Tolerance 1 NC / 2 1.6nH ±0.2nH 3 0.75pF ±0.1 pF 2. Electrical characteristics 2.1 Elecrtical table Characteristics Specifications Unit Outline Dimensions 5.2*2.2*1.0 mm Working frequency 2400-2500 MHz VSWR <2 / Impdeance 50 ohm polarization Line / Gain peak 2 dBi Efficiency 50 % 2.2 VSWR& Return loss VSWR Return loss 2.3 Gain and Efficiency Frequency(MHz) Gain(dBi) Efficiency(%) 2400 1.34 45.88 2410 1.37 46.78 2420 1.09 47.67 2430 1.22 50.38 2440 1.45 50.78 2450 1.67 51.44 2460 1.87 51.34 2470 2.00 51.36 2480 1.75 51.24 2490 1.67 51.36 2500 1.89 51.24 2.4 Antenna radiation pattern 3D Plane @2440MHz 2D Plane XOY @2440MHz 2D Plane XOZ @2440MHz 2D Plane YOZ @2440MHz

Report No.: ET-23010030E This test report is valid for the tested samples only. It cannot be reproduced except in full without prior written consent of Shenzhen ETR Standard Technology Co., Ltd. TEST REPORT Applicant: Shenzhen E-Ran Technology Co., Ltd. Address of Applicant: Room 201, Plant No.34, Zhangyi Residential Quarter, Junzibu Community, Guanlan Street, Longhua District, Shenzhen Manufacturer/Factory: Shenzhen Yinuo Digital Technology Co.,Ltd Address of Manufacturer/Factory: Room 201, Plant No.34, Zhangyi Residential Quarter, Junzibu Community, Guanlan Street, Longhua District, Shenzhen Product Name: TWS Earbuds Model No.: ES22 Trade Mark: N/A FCC ID: 2A8NV-ES22 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Date of Test: Jan.10, 2023- Jan.29, 2023 Date of report issued: Feb.08, 2023 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. Remark: The results shown in this test report refer only to the sample(s) tested , this test report cannot be reproduced, except in full without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver Prepared By Shenzhen ETR Standard Technology Co., Ltd. Address: No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Compiled by: Reviewed by: Approved by: Project Engineer Project Manager Authorized Signature - Page 2 of 47 - Report No.: ET-23010030E Report Revision History Report No. Description Issue Date ET-23010030E Original Feb.08, 2023 - Page 3 of 47 - Report No.: ET-23010030E Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Contents Page 1 TEST SUMMARY ......................................................................................................................................4 2 GENERAL INFORMATION .......................................................................................................................5 2.1 GENERAL DESCRIPTION OF EUT ..........................................................................................................5 2.2 TEST MODE .........................................................................................................................................7 2.3 DESCRIPTION OF SUPPORT UNITS ........................................................................................................7 2.4 DEVIATION FROM STANDARDS ..............................................................................................................7 2.5 ABNORMALITIES FROM STANDARD CONDITIONS ....................................................................................7 2.6 TEST FACILITY.....................................................................................................................................7 2.7 TEST LOCATION...................................................................................................................................7 2.8 ADDITIONAL INSTRUCTIONS ..................................................................................................................7 3 TEST INSTRUMENTS LIST ......................................................................................................................8 4 TEST RESULTS AND MEASUREMENT DATA .......................................................................................9 4.1 ANTENNA REQUIREMENT ......................................................................................................................9 4.2 CONDUCTED EMISSIONS ....................................................................................................................10 4.3 CONDUCTED PEAK OUTPUT POWER ...................................................................................................13 4.4 20DB EMISSION BANDWIDTH ..............................................................................................................14 4.5 CARRIER FREQUENCIES SEPARATION .................................................................................................18 4.6 HOPPING CHANNEL NUMBER .............................................................................................................22 4.7 DWELL TIME ......................................................................................................................................24 4.8 BAND EDGE.......................................................................................................................................29 4.8.1 Conducted Emission Method ......................................................................................................29 4.8.2 Radiated Emission Method .........................................................................................................33 4.9 SPURIOUS EMISSION .........................................................................................................................35 4.9.1 Conducted Emission Method ......................................................................................................35 4.9.2 Radiated Emission Method .........................................................................................................39 5 TEST SETUP PHOTO .............................................................................................................................47 6 EUT CONSTRUCTIONAL DETAILS .......................................................................................................47 - Page 4 of 47 - Report No.: ET-23010030E Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China 1 Test Summary Test Item Section in CFR 47 Result Te…

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