ZBCWX316AWireless Headset

BT-261 Headphone Manual Congratulations and thanks for your use of our Bluetooth headset. In order to handle exactly, please read this manual carefully. Keys and Parts The headset contains the following parts: ●Headset*1 ●Audio cable*1 ●Charging cable*1 ● Manual*1 Switch On Press and hold the Power key about 5 seconds, the headset is under Bluetooth searching mode (red / blue light flashes quickly and alternately and there is a prompt tone). Switch Off Press and hold the Power key about 2 seconds. If the headset is not connected to a device within 5 minutes, it switches off automatically. (There are prompt tones “Power off”) Pairing 1. Ensure that your phone or Bluetooth device is switched on. 2. To pair the headset that has not been previously paired with a device, please switch on the headset. Then, the headset enters the pairing mode, and the blue indicator light starts to flash quickly. To pair the headset that has been previously paired with another device, please make sure that the device is switched off. 3. Activate the Bluetooth on your phone or Bluetooth device, and set it to searching Bluetooth device. 4. Select “BT-261” from the list of found devices on your phone or Bluetooth devices. 5. When Bluetooth is paired successfully, there will be prompt tone and the blue light turns to lighting continuously. The headset that has been previously paired with another device will automatically connect with the device if the device is power on and within connecting range. If not, the headset will enter standby mode and the blue light will keep lighting. Under Bluetooth searching mode or re-connecting mode, the headset will switch off the Bluetooth automatically after 10 minutes. Adjust the Volume The volume will be up or down when long press the volume +/- key during a calling or while listening to music. When the volume reaches to maximum, there is a warning tone. Charge the Battery The headset contains a Micro USB cable that can be connected to your computer or other device made for USB charging. Please plug the Micro USB end of the included USB cable into the USB micro port charger connector under the left ear-cap of the headphone, and plug the other end into a USB port on your computer or other devices made for USB charging. The indicator light will be red while charging. Once fully charged, the indicator light will turn off. Charge time is two hours and half on an empty battery. The fully charged battery has power for up to 15 hours talking and/or music time (and up to 300 hours standby time). The headset is with built-in lithium ion battery. Please keep at least 4 hours full charge before first time of use (Suggestion: Don’t use the car charger at first time). Application BT-261 can make and receive hands-free calls with your compatible mobile phone, and listen to music from a compatible Bluetooth device, but they should be within 15 meters (49 feet) of each other and barrier free between them. The headset is compliant with the Bluetooth Specification 5.0, support the following profiles: Headset Profile (HSP) V1.6, Hands-free Profile (HFP) V1.5, Advanced Audio Distribution Profile (A2DP) V1.0, and Audio Video Remote Control Profile (AVRCP) V1.4. Input rating 5V DC, 0.5A. Calls To answer or end a call, when phone call comes, quickly press the phone key to answer it and long press about 1.5 seconds to reject the call. Call is ended when short press during a call. Listen to Music To listen to music, connect the headset to phone or compatible Bluetooth devices that support A2DP Bluetooth profile. The available music functions depend on your Bluetooth devices. If you receive or make a call while listening to music, the music is paused until the call ends. To play a song, select in the music player and press the Play/Pause key on the headphone. To pause or resume playing a song, press the Play/Pause key. To select the next song during playback, press the volume down key quickly. To select the previous song, press the volume up key quickly. To increase the volume, press and hold the volume up key, there will be beep tone when reaching Max volume. To decrease the volume, press and hold the volume down key. (Until mute) Disconnect the headset To disconnect the headset from your device, switch off the headset, or disconnect it in Bluetooth menu of your device. Reconnect the Headset To connect the headset to the phone or Bluetooth devices that you have last used with it, Press and hold the power key for 3 second, the headphone will switch on and connect with the devices or phone automatically. Passive model You can use BT-261 as a wired headphone. Simply connect the headset to your MP3 player with 3.5mm audio cable. Inserting an audio cable plug disables the wireless functionality. Caution: 1. The long time high level sound will damage your hearing. Please avoid using in high level volume especially in long time using. 2. Please turn off the headset and put it into box to avoid damage, scratches or bracket deformation when long time no use. In order to prolong the battery service life, please charge every 6 months. 3. Please charge at first if the headset is left unused for long time. 4. The battery of headset is original and please don’t change it by yourself. 5. Please keep the headset under dry place. 6. The operating temperature is 5°C to 35 ° C. Please don’t put the headset into fire to avoid battery blast accident. 7. Please don’t bent or twist the bracket to avoid deformation. 8. Please don’t tear down ear-cap by un-professional person. 9. Audiologist suggests not adjusting the volume to a very high level and continued play. If tinnitus occurs, please turn the volume down or stop playing, do not turn the volume up suddenly. Please slowly turn up the volume to avoid hearing damage caused by high volume. 10. Do not use the headset in dangerous place or place where cannot hear the outside sound. Specifications Driver unit 40mm Neodymium Impedance 32Ω Driver unit Frequency 20Hz-20K Hz Head…

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SCS-F18: Project and Product Certification Representative Authorization Letter Page 1 of 2 Rev 6.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Project and Product Certification Representative Authorization Letter Reason for Amendment (current / obsolete) Revision History Approved Date From To Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Revised wording (obsolete) 1.0 2.0 Sept–25-2007 Updated company template (obsolete) 2.0 3.0 Jan-31-2012 Updated letter information (obsolete) 3.0 4.0 May-23-2014 Added FCC ID field (obsolete) 4.0 5.0 Sep-16-2014 Updated company name & logo (current) 5.0 6.0 Jun-27-2018 SCS-F18: Project and Product Certification Representative Authorization Letter Page 2 of 2 Rev 6.0 SHENZHEN DNS INDUSTRIES CO., LTD. 2020/06/18 To: Bureau Veritas Consumer Product Services 775 Montague Expressway, Milpitas, CA 95035 USA Dear Sir/Madam, Re: Product Certification Representative Authorization Letter We, _ SHENZHEN DNS INDUSTRIES CO., LTD...hereby authorize Bureau Veritas Consumer Product Services to act as a Certification Body for certifying for the following project(s): Product description Wireless Headset model name: WX-316A FCC ID: ZBCWX316A Sincerely, Client’s signature Contact information / address : 23/F Building A, Shenzhen International Innovation Center, No.1006 Shennan Road, Futian, Shenzhen, China

SCS-F19: Confidentiality Request Letter Page 1 of 2 Rev 6.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Confidentiality Request Letter Reason for Amendment (current / obsolete) Revision History Approved Date From To Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Adding CFR 2.459 (obsolete) 1.0 2.0 August – 11 - 2008 Updated company template & Added text box (obsolete) 2.0 3.0 Jan-31-2012 Added IC confidentiality letter form (obsolete) 3.0 4.0 March-26-2015 Corrections to STC form. Added reference to KDB (obsolete) 4.0 5.0 Nov-19-2015 Updated company logo (current) 5.0 6.0 Jun-26-2019 SCS-F19: Confidentiality Request Letter Page 2 of 2 Rev 6.0 SHENZHEN DNS INDUSTRIES CO., LTD. 2020/06/18 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Subject: Permanent Confidentiality Request for FCC ID: ZBCWX316A Pursuant to sections 0.457 and 0.459 of CFR 47, we respectfully request permanent confidential treatment of the following Exhibits accompanying this application as: - . Block Diagram - . Schematics - . Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Client’s signature Contact information / address : 23/F Building A, Shenzhen International Innovation Center, No.1006 Shennan Road, Futian, Shenzhen, China

Bureau Veritas (Shenzhen) Consumer Products Services Co., Ltd. Zone A, Floor 1, Building 2, Wan Ye Long Technology Park, South Side of Zhoushi Road, Bao’an District, Shenzhen Guangdong, 518108, China. Tel: +86-755-26014629 Ext.800 Email: [email protected] Page 1 of 3 Report Version 1 Reference No.: 200522S002 Bureau Veritas (Shenzhen) Consumer Products Services Co., Ltd. Zone A, Floor 1, Building 2, Wan Ye Long Technology Park, South Side of Zhoushi Road, Bao’an District, Shenzhen Guangdong, 518108, China. Tel: +86-755-26014629 Ext.800 Email: [email protected] Page 2 of 3 Report Version 1 Reference No.: 200522S002 Bureau Veritas (Shenzhen) Consumer Products Services Co., Ltd. Zone A, Floor 1, Building 2, Wan Ye Long Technology Park, South Side of Zhoushi Road, Bao’an District, Shenzhen Guangdong, 518108, China. Tel: +86-755-26014629 Ext.800 Email: [email protected] Page 3 of 3 Report Version 1 Reference No.: 200522S002

Bureau Veritas (Shenzhen) Consumer Products Services Co., Ltd. Zone A, Floor 1, Building 2, Wan Ye Long Technology Park, South Side of Zhoushi Road, Bao’an District, Shenzhen Guangdong, 518108, China. Tel: +86-755-26014629 Ext.800 Email: [email protected] Page 1 of 3 Report Version 1 Reference No.: 200522S002 PHOTOGRAPHS OF THE EUT Bureau Veritas (Shenzhen) Consumer Products Services Co., Ltd. Zone A, Floor 1, Building 2, Wan Ye Long Technology Park, South Side of Zhoushi Road, Bao’an District, Shenzhen Guangdong, 518108, China. Tel: +86-755-26014629 Ext.800 Email: [email protected] Page 2 of 3 Report Version 1 Reference No.: 200522S002 Bureau Veritas (Shenzhen) Consumer Products Services Co., Ltd. Zone A, Floor 1, Building 2, Wan Ye Long Technology Park, South Side of Zhoushi Road, Bao’an District, Shenzhen Guangdong, 518108, China. Tel: +86-755-26014629 Ext.800 Email: [email protected] Page 3 of 3 Report Version 1 Reference No.: 200522S002 RF ANT

Bureau Veritas (Shenzhen) Consumer Products Services Co., Ltd. Zone A, Floor 1, Building 2, Wan Ye Long Technology Park, South Side of Zhoushi Road, Bao’an District, Shenzhen Guangdong, 518108, China. Tel: +86-755-26014629 Ext.800 Email: [email protected] Page 1 of 6 Report Version 1 Test Report No.: FM200522S002 RF EXPOSURE REPORT Applicant SHENZHEN DNS INDUSTRIES CO., LTD. Address 23/F Building A, Shenzhen International Innovation Center, No.1006 Shennan Road, Futian, Shenzhen, China Manufacturer or Supplier SHENZHEN DNS INDUSTRIES CO., LTD. Address 23/F Building A, Shenzhen International Innovation Center, No.1006 Shennan Road, Futian, Shenzhen, China Product Wireless Headset Brand Name DNS Model WX-316A Additional Model & Model Difference N/A Date of tests May 29, 2020~ Jun. 16, 2020 FCC Part 2 (Section 2.1093) KDB 447498 D01 IEEE C95.1 CONCLUSION: The submitted sample was found to COMPLY with the test requirement Tested by Aaron Liang Project Engineer / EMC Department Approved by David Huang Supervisor / EMC Department Date: Jun. 17, 2020 This report is governed by, and incorporates by reference, CPS Conditions of Service as posted at the date of issuance of this report at http://www.bureauveritas.com/home/about-us/our-business/cps/about-us/terms-conditions/and is intended for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. Measurement uncertainty is only provided upon request for accredited tests. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence or if you require measurement uncertainty; provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute you unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Bureau Veritas (Shenzhen) Consumer Products Services Co., Ltd. Zone A, Floor 1, Building 2, Wan Ye Long Technology Park, South Side of Zhoushi Road, Bao’an District, Shenzhen Guangdong, 518108, China. Tel: +86-755-26014629 Ext.800 Email: [email protected] Page 2 of 6 Report Version 1 Test Report No.: FM200522S002 Table of Contents RELEASE CONTROL RECORD ................................................................................ 3 1. CERTIFICATION .............................................................................................. 4 2. RF EXPOSURE DEFINE ................................................................................. 5 3. CLASSIFICATION ........................................................................................... 5 4. SAR TEST EXCLUSION THRESHOLDS ........................................................ 6 Bureau Veritas (Shenzhen) Consumer Products Services Co., Ltd. Zone A, Floor 1, Building 2, Wan Ye Long Technology Park, South Side of Zhoushi Road, Bao’an District, Shenzhen Guangdong, 518108, China. Tel: +86-755-26014629 Ext.800 Email: [email protected] Page 3 of 6 Report Version 1 Test Report No.: FM200522S002 RELEASE CONTROL RECORD ISSUE NO. REASON FOR CHANGE DATE ISSUED FM200522S002 Original release Jun. 17, 2020 Bureau Veritas (Shenzhen) Consumer Products Services Co., Ltd. Zone A, Floor 1, Building 2, Wan Ye Long Technology Park, South Side of Zhoushi Road, Bao’an District, Shenzhen Guangdong, 518108, China. Tel: +86-755-26014629 Ext.800 Email: [email protected] Page 4 of 6 Report Version 1 Test Report No.: FM200522S002 1. CERTIFICATION FCC ID: ZBCWX316A PRODUCT: Wireless Headset BRAND NAME: DNS MODEL NO.: WX-316A ADDITIONAL NO.: N/A TEST SAMPLE: Engineering Sample APPLICANT: SHENZHEN DNS INDUSTRIES CO., LTD. STANDARDS: FCC Part 2 (Section 2.1093) KDB 447498 D01 IEEE C95.1 Bureau Veritas (Shenzhen) Consumer Products Services Co., Ltd. Zone A, Floor 1, Building 2, Wan Ye Long Technology Park, South Side of Zhoushi Road, Bao’an District, Shenzhen Guangdong, 518108, China. Tel: +86-755-26014629 Ext.800 Email: [email protected] Page 5 of 6 Report Version 1 Test Report No.: FM200522S002 2. RF EXPOSURE DEFINE The corresponding SAR Exclusion Threshold condition, listed below: 1) 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,16 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. 2) At 100 MHz to 6 GHz and for test separation distances > 50 mm, the SAR test exclusion threshold is determined according to the following: a) [Threshold at 50 mm in step 1) + (test separation distance - 50 mm)·( f(MHz)/150)] mW, at 100MHz to 1500 MHz b) [Threshold at 50 mm in step 1) + (test separation distance - 50 mm)·10] mW at > 1500 MHz and ≤ 6 GHz 3) At freque…

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Bureau Veritas (Shenzhen) Consumer Products Services Co., Ltd. Zone A, Floor 1, Building 2, Wan Ye Long Technology Park, South Side of Zhoushi Road, Bao’an District, Shenzhen Guangdong, 518108, China. Tel: +86-755-26014629 Ext.800 Email: [email protected] Page 1 of 57 Report Version 1 Test Report No.: RF200522S002 TEST REPORT Applicant SHENZHEN DNS INDUSTRIES CO., LTD. Address 23/F Building A, Shenzhen International Innovation Center, No.1006 Shennan Road, Futian, Shenzhen, China Manufacturer or Supplier SHENZHEN DNS INDUSTRIES CO., LTD. Address 23/F Building A, Shenzhen International Innovation Center, No.1006 Shennan Road, Futian, Shenzhen, China Product Wireless Headset Brand Name DNS Model WX-316A Additional Model & Model Difference N/A Date of tests May 29, 2020~ Jun. 16, 2020 the tests have been carried out according to the requirements of the following standards: FCC Part 15, Subpart C, Section 15.247 CONCLUSION: The submitted sample was found to COMPLY with the test requirement Tested by Evans He Project Engineer / EMC Department Approved by David Huang Assistant Manager / EMC Department Date: Jun. 17, 2020 This report is governed by, and incorporates by reference, CPS Conditions of Service as posted at the date of issuance of this report at http://www.bureauveritas.com/home/about-us/our-business/cps/about-us/terms-conditions/and is intended for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. Measurement uncertainty is only provided upon request for accredited tests. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence or if you require measurement uncertainty; provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute you unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Bureau Veritas (Shenzhen) Consumer Products Services Co., Ltd. Zone A, Floor 1, Building 2, Wan Ye Long Technology Park, South Side of Zhoushi Road, Bao’an District, Shenzhen Guangdong, 518108, China. Tel: +86-755-26014629 Ext.800 Email: [email protected] Page 2 of 57 Report Version 1 Test Report No.: RF200522S002 TABLE OF CONTENTS RELEASE CONTROL RECORD ..................................................................................................... 5 1 SUMMARY OF TEST RESULTS ............................................................................................. 6 2 MEASUREMENT UNCERTAINTY .......................................................................................... 6 3 GENERAL INFORMATION ..................................................................................................... 7 3.1 GENERAL DESCRIPTION OF EUT .................................................................................... 7 3.2 DESCRIPTION OF TEST MODES ...................................................................................... 8 3.2.1. CONFIGURATION OF SYSTEM UNDER TEST ........................................................ 9 3.2.2. TEST MODE APPLICABILITY AND TESTED CHANNEL DETAIL ............................. 9 3.3 GENERAL DESCRIPTION OF APPLIED STANDARDS .................................................... 11 3.4 DESCRIPTION OF SUPPORT UNITS ............................................................................... 11 4 TEST TYPES AND RESULTS ................................................................................................11 4.1. CONDUCTED EMISSION MEASUREMENT ............................................................... 12 4.1.1 LIMITS OF CONDUCTED EMISSION MEASUREMENT ........................................ 12 4.1.2 TEST INSTRUMENTS .............................................................................................. 12 4.1.3 TEST PROCEDURES .............................................................................................. 13 4.1.4 DEVIATION FROM TEST STANDARD .................................................................... 13 4.1.5 TEST SETUP ............................................................................................................ 14 4.1.6 EUT OPERATING CONDITIONS ............................................................................. 14 4.1.7 TEST RESULTS........................................................................................................ 15 4.2. RADIATED EMISSION AND BANDEDGE MEASUREMENT ....................................... 17 4.2.1 LIMITS OF RADIATED EMISSION AND BANDEDGE MEASUREMENT ................ 17 4.2.2 TEST INSTRUMENTS .............................................................................................. 18 4.2.3 TEST PROCEDURES .............................................................................................. 19 4.2.4 DEVIATION FROM TEST STANDARD .................................................................... 20 4.2.5 TEST SETUP ............................................................................................................ 20 4.2.6 EUT OPERATING CONDITIONS ............................................................................. 21 4.2.7 TEST RESULTS....................................................................................................…

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Bureau Veritas (Shenzhen) Consumer Products Services Co., Ltd. Zone A, Floor 1, Building 2, Wan Ye Long Technology Park, South Side of Zhoushi Road, Bao’an District, Shenzhen Guangdong, 518108, China. Tel: +86-755-26014629 Ext.800 Email: [email protected] Page 1 of 2 Report Version 1 Reference No.: 200522S002 SET-UP FOR RADIATED EMISSION TEST CONDUCTED EMISSION TEST Bureau Veritas (Shenzhen) Consumer Products Services Co., Ltd. Zone A, Floor 1, Building 2, Wan Ye Long Technology Park, South Side of Zhoushi Road, Bao’an District, Shenzhen Guangdong, 518108, China. Tel: +86-755-26014629 Ext.800 Email: [email protected] Page 2 of 2 Report Version 1 Reference No.: 200522S002 Frequency Range< 9kHz~30MHz > Frequency Range< 30MHz~1GHz >