2A43Q-W18Bluetooth headset

電源オン 話番号をリダイヤルになります。 FCC Caution： This device complies with part 15 of the FCC Rules. Operation is subject to the fo llowing 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. A ny 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 digital device , pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protec tion 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 instruct ions, 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 rad io or television reception, which can be det ermined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the fo llowing 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Shenzhen Yingruier Technology Co., Ltd. Authorization Company: Shenzhen Yingruier Technology Co., Ltd. Address: Room 503, Floor 5th, Building 6th, Shuiku Road No.2, Nankeng Village, Bantian Street, Longgang District, Shenzhen City, Guangdong Province, China Product Name: Bluetooth headset Model Number(s): W18 Product Description: Bluetooth headset 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: 2022/02/26 Name: Ronglin Huang Title: Manager Company: Shenzhen Yingruier Technology Co., Ltd.

Shenzhen Yingruier Technology Co., Ltd. Date: 2022/02/26 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Confidentiality FCC ID: 2A43Q-W18 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 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); User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuantto 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: Ronglin Huang Title: Manager

External Photos

Label & label location 10mm*5mm FCC ID: 2A43Q-W18 Label location

Internal Photos Antenna

RF EXPOSURE EVALUATION METHOD FCC ID: 2A43 Q-W18 SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. 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 The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. BT-EDR max possible output power (PK,conducted)：4±1dbm 2dBi logarithmic terms convert to numeric result is nearly 1.585 5dBm=3.16mW 2402MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]=3.16/5*√2.402=0.98≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. Modulation Frequency (MHz) Output Power (dBm) Max Antenna Gain (dBi) GFSK 2402 0.78 2 GFSK 2441 1.01 2 GFSK 2480 0.97 2 Pi/4 DQPSK 2402 2.91 2 Pi/4 DQPSK 2441 3.25 2 Pi/4 DQPSK 2480 3.24 2 8DPSK 2402 3.37 2 8DPSK 2441 3.53 2 8DPSK 2480 3.66 2 2441MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]=3.16/5*√2.441=0.99≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. 2480MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]=3.16/5*√2.48=1.00≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. Conclusion: No SAR is required.

No.：BCTC/RF-EMC-007 Page: 1 of 81 Edition：A.4 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2202585206E Applicant: Shenzhen Yingruier Technology Co., Ltd. Product Name: Bluetooth headset Model/Type reference: W18 Tested Date: 2022-02-21 to 2022-02-23 Issued Date: 2022-02-23 Report No.: BCTC2202585206E No.：BCTC/RF-EMC-007 Page: 2 of 81 Edition：A.4 FCC ID:2A43Q-W18 The test report is effective only with both signature and specialized stamp.This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full.The tested sample(s) and the sample information are provided by the client. Product Name: Bluetooth headset Trademark: N/A Model/Type Reference: W18 Prepared For: Shenzhen Yingruier Technology Co., Ltd. Address: Room 503, Floor 5th, Building 6th, Shuiku Road No.2, Nankeng Village, Bantian Street, Longgang District, Shenzhen City, Guangdong Province, China Manufacturer: Shenzhen kangchen electronic technology co., ltd Address: Floor 8, Building B, Ruixiangfa Industrial Park, No.3, No.1 Road, Shangxue Science Park, Bantian Street, Longgang District, Shenzhen Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Tangwei, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2022-02-21 Sample tested Date: 2022-02-21 to 2022-02-23 Issue Date: 2022-02-23 Report No.: BCTC2202585206E Test Standards FCC Part15.247 ANSI C63.10-2013 Test Results PASS Remark: This is Bluetooth Classic radio test report. Tested by: Approved by: Kelsey Tan/ Project Handler Zero Zhou/Reviewer Report No.: BCTC2202585206E No.：BCTC/RF-EMC-007 Page: 3 of 81 Edition：A.4 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information And Test Setup ..................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 8 4.3 Support Equipment ............................................................................................... 9 4.4 Channel List .......................................................................................................... 9 4.5 Test Mode ........................................................................................................... 10 4.6 Table Of Parameters Of Text Software Setting ................................................... 10 5. Test Facility And Test Instrument Used ............................................................... 11 5.1 Test Facility ......................................................................................................... 11 5.2 Test Instrument Used .......................................................................................... 11 6. Conducted Emissions .......................................................................................... 13 6.1 Block Diagram Of Test Setup .............................................................................. 13 6.2 Limit .................................................................................................................... 13 6.3 Test procedure .................................................................................................... 13 6.4 EUT operating Conditions ................................................................................... 13 6.5 Test Result .......................................................................................................... 14 7. Radiated emissions ............................................................................................. 16 7.1 Block Diagram Of Test Setup .............................................................................. 16 7.2 Limit .................................................................................................................... 17 7.3 Test procedure .................................................................................................... 18 7.4 EUT operating Conditions ................................................................................... 19 7.5 Test Result .......................................................................................................... 20 8. Radiated Band Emission Measurement And Restricted Bands Of Operation ..... 24 8.1 Block Diagram Of Test Setup .............................................................................. 24 8.2 Limit .................................................................................................................... 24 8.3 Test procedure .................................................................................................... 25 8.4 EUT operating Conditions ................................................................................... 25 8.5 Test Result .......................................................................................................... 26 9. Spurious RF Conducted Emissions ..................................................................... 27 9.1 Block Diagram Of Test Setup .............................................................................. 27 9.2 Limit .................................................................................................................... 27 9.3 Test procedure .................................................................................................... 27 9.4…

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Report No.: BCTC2202585206E No.：BCTC/RF-EMC-007 Page: 79 of 81 Edition：A.4 17. EUT Test Setup Photographs Conducted emissions Report No.: BCTC2202585206E No.：BCTC/RF-EMC-007 Page: 80 of 81 Edition：A.4 Radiated Measurement Photos