VU8WLP24Audio Accessory with 2.4GHz Wireless PTT for Two Way Radios

Shenzhen Voxtech Co., Ltd. Declaration letter for multiple models We, Shenzhen Voxtech Co., Ltd. The 4th floor, NO.1 building, Baodazhou District, Shancheng Industrial Park, Shiyan Town, Shenzhen, PR China Declare that the following product(s): Product Description: audio accessory with 2.4 GHz wireless PTT for two way radios Model Number: ZZW90, ZZW92, ZW80, ZZW81, ZW9H Utilize the identical circuit design, PCB layout, shielding and interface with (ZZW90) nly the cosmetic is difference. Therefore this application can be regarded as identical in performance to the submitted test sample. The manufacturer would take all the responsibilities for the above product(s). For and on behalf of Shenzhen Authorized person Location Name: Jim Liu Position: Purchasing Manager Date of issue: 2013-08-12 *I hereby declare that I am entitled to sign on behalf of the applicant and that the information supplied is correct and complete.

Shenzhen Voxtech Co., Ltd. Date: 08/08/2013 TUV SUD BABT TCB Octagon House, Segensworth Road, Fareham, Hampshire, PO15 5RL Dear Sir or Madam, We, Shenzhen Voxtech Co., Ltd. The 4th floor, NO.4 building, Baodazhou District, Shancheng Industrial Park, Shiyan Town, Shenzhen, PR China Andy wang hereby authorize Bovey.yang NTEK Testing Technology Co., Ltd. 1/F, Building E, Fenda Science Park Sanwei Community, Xixiang Street, Baoan District 0755-61156588 to act as our agent in all matters relating to applications for equipment authorization, including the signing of all documents relating to these matters. This authorization expires on 1 year duration Sincerely, Company Officer: Purchasing Manager Telephone Number: +86-755-36615200-129 Email: [email protected]

Shenzhen Voxtech Co., Ltd. Date: 08/08/2013 TUV SUD BABT TCB Octagon House, Segensworth Road, Fareham, Hampshire, PO15 5RL Confidentiality Request FCC ID: VU8WLP24 Pursuant to Sections 0.457(d)(1)(ii) and 0.459 of the Commission’s Rules, Shenzhen Voxtech Co., Ltd. hereby requests permanent confidential treatment of information accompanying this application as outlined below: [Common exhibits for which confidentiality is requested are: Schematics Block Diagrams Theory of Operation] Shenzhen Voxtech Co., Ltd. also hereby requests short-term confidential treatment of information accompanying this application as outlined below for a period of 180 day: [Common exhibits for which short-term confidentiality is requested are: Internal Photos External Photos User Manual Test Set-up Photographs The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to Rule 0.457(d)(1)(ii), disclosure of this Application and all accompanying materials will not be made before the date of the Grant for this Application. Yours sincerely, Company Officer: Purchasing Manager (signed by FCC listed Grantee contact) Telephone Number: +86-755-36615200-129 Email: [email protected]

APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Photo 1 Photo 2 Photo 3 Photo 4 Photo 5

Photo 6 Photo 7 Photo 9 Antenna Photo 10 Photo 11

RF EXPOSURE TEST Portable device According to §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to KDB 447498 (2)(a)(i) For portable device,the power limit is 60/f(in GHz) mW For limit 60/f is equal: 60/2.402=24.97mW 60/2.432=24.67 mW 60/2.472=24.27mW Accoring to the follow transmitter output power (P t ) formula: P t =(E×d) 2 /(30×g t ) P t =transmitter output power in watts g t =numeric gain of the transmitting antenna (unitless) E =electric field strength in V/m d =measurement distance in meters (m) Maximum measured transmitter power Frequency (MHZ) Max EIRP （dbuv/m） Reading (E) Antenna Gain (g t ) measureme nt distance (d)(m) EIRP (dBm) EIRP (mw) (P t ) 2402 94.23 0.0514 1.78(2.5dBi)3 -3.52 0.445 2432 96.29 0.0652 1.78(2.5dBi)3 -1.45 0.716 2472 91.07 0.0357 1.78(2.5dBi)3 -6.70 0.214 The max.output power E.I.R.P is 0.716mW<24.67mW Conclusion: No SAR is required.

FCC RADIO TEST REPORT FCC ID: VU8WLP24 Product： audio accessory with 2.4 GHz wireless PTT for two way radios Trade Name： N/A Model Name： ZZW90 Serial Model： ZZW92, ZZW80, ZZW81, ZZW9H Report No.： NTEK-2013DC0730084F Prepared for Shenzhen Voxtech Co., Ltd. The 4th floor, NO.4 building, Baodazhou District, Shancheng Industrial Park, Shiyan Town, Shenzhen, PR China Prepared by NTEK Testing Technology Co., Ltd. 1/F, Building E, Fenda Science Park, Sanwei Community,Xixiang Street Bao’an District, Shenzhen P.R. China Tel.: +86-0755-61156588 Fax.: +86-0755-61156599 Website:www.ntek.org.cn Page 2 of 37 Report No.: NTEK-2013DC0730084F ` TEST RESULT CERTIFICATION Applicant’s name................. : Shenzhen Voxtech Co., Ltd. Address ................................. : The 4th floor, NO.4 building, Baodazhou District, Shancheng Industrial Park, Shiyan Town, Shenzhen, PR China Manufacture's Name............ : Shenzhen Voxtech Co., Ltd. Address ................................. : The 4th floor, NO.4 building, Baodazhou District, Shancheng Industrial Park, Shiyan Town, Shenzhen, PR China Product description Product name ........................... : audio accessory with 2.4 GHz wireless PTT for two way radios Model and/or type reference : ZZW90 Serial Model： ZZW92, ZZW80, ZZW81, ZZW9H Standards............................. : FCC Part15.249 Test procedure .............................. ANSI C63.4-2009 This device described above has been tested by NTEK, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of NTEK, this document may be altered or revised by NTEK, personal only, and shall be noted in the revision of the document. Date of Test............................................: Date (s) of performance of tests .............: 30 Jul. 2013 ~10 Aug. 2013 Date of Issue...........................................: 10 Aug. 2013 Test Result...............................................: Pass Testing Engineer : (Jason Chen) Technical Manager : (Tom Zhang) Authorized Signatory : (Bovey Yang) Page 3 of 37 Report No.: NTEK-2013DC0730084F ` Table of Contents Page 1 . SUMMARY OF TEST RESULTS 4 1.1 TEST FACILITY 5 1.2 MEASUREMENT UNCERTAINTY 5 2 . GENERAL INFORMATION 6 2.1 GENERAL DESCRIPTION OF EUT 6 2.2 DESCRIPTION OF TEST MODES 7 2.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 8 2.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 9 2.5 EQUIPMENTS LIST FOR ALL TEST ITEMS 10 3 . ANTENNA REQUIREMENT 11 3.1 STANDARD REQUIREMENT 11 3.2 EUT ANTENNA 11 3.3 CONDUCTED EMISSION MEASUREMENT 12 3.3.1 POWER LINE CONDUCTED EMISSION LIMITS 12 3.3.2 TEST PROCEDURE 13 3.3.3 DEVIATION FROM TEST STANDARD 13 3.3.4 TEST SETUP 13 3.2.5 TEST RESULT 14 3.4 RADIATED EMISSION MEASUREMENT 15 3.4.1 RADIATED EMISSION LIMITS 15 3.4.2 TEST PROCEDURE 16 3.4.3 DEVIATION FROM TEST STANDARD 16 3.4.4 TEST SETUP 17 3.4.5 TEST RESULTS (BLOW 30MHZ) 19 3.4.6 TEST RESULTS (BETWEEN 30 – 1000 MHZ) 20 3.4.7 TEST RESULTS (ABOVE 1000 MHZ) 22 3.4.8 MAXIMUM TRANSMITTER OUTPUT POWER 28 3.4.9 TEST RESULTS (RESTRICTED BANDS REQUIREMENTS) 29 4 . BANDWIDTH TEST 33 4.1 TEST PROCEDURE 33 4.2 DEVIATION FROM STANDARD 33 4.3 TEST SETUP 33 4.4 TEST RESULTS 34 5 . EUT TEST PHOTO 37 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Page 4 of 37 Report No.: NTEK-2013DC0730084F ` 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15, Subpart C (15.249) Standard Section Test Item Judgment Remark 15.207 Conducted Emission N/A 15.203 Antenna Requirement Pass 15.249 Radiated Spurious Emission Pass 15.205 Band Edge Emission Pass 15.249 Occupied Bandwidth Pass Page 5 of 37 Report No.: NTEK-2013DC0730084F ` 1.1 TEST FACILITY NTEK Testing Technology Co., Ltd Add. : 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street, Bao’an District, Shenzhen P.R. China. FCC Registration No.:238937; IC Registration No.:9270A-1 CNAS Registration No.:L5516 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U，where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2，providing a level of confidence of approximately 95 %。 No. Item Uncertainty 1 Conducted Emission Test ±1.38dB 2 RF power,conducted ±0.16dB 3 Spurious emissions,conducted ±0.21dB 4 All emissions,radiated(<1G) ±4.68dB 5 All emissions,radiated(>1G) ±4.89dB 6 Temperature ±0.5°C 7 Humidity ±2% Page 6 of 37 Report No.: NTEK-2013DC0730084F ` 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Equipment audio accessory with 2.4 GHz wireless PTT for two way radios Trade Name N/A Model Name ZZW90 Serial Model ZZW92, ZZW80, ZZW81, ZZW9H Model Difference All the model are the same circuit and RF module, except the appearance and colour. Product Description The EUT is a audio accessory with 2.4 GHz wireless PTT for two way radios Operation Frequency: 2402~24 72MHz Modulation Type: FSK Antenna Designation: CHIP Antenna Antenna Gain(Peak) 2.5 dBi EIRP 96.29dbuv/m@3m Based on the application, features, or specification exhibited in User's Manual, the EUT is considered as an Intentional Radiator Device. More details of EUT technical specification, please refer to the User's Manual. Output Power: 0.716mW Channel List CH1：2402 CH2：2432 CH3：2472 Note: 1. For a more detailed features description, please refer to the manufacturer’s specifications or the User's Manual. 2. Channel Frequency (MHz) 01 2402 02 2432 03 2472 3. Table for Filed Antenna Ant . Brand Model Name Antenna Type Connector Gain (dBi) NOTE 1 muRata NAN68-PA0004FCHIP Antenna NA 2.5 Antenna Page 7 of 37 Report No.: NTEK-2013DC0730084F ` 2.2 DESCRIPTION OF TEST MODES To investigate the maximum EMI emission characteristics generates from EUT, the test system was pre-scanning tested base on the consideration of following EUT operation mode or test configurati…

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Page 36 of 36 Report No.: NTEK-2013DC0730084F ` 5. EUT TEST PHOTO Radiated Measurement Photos(30-1G) Radiated Measurement Photos(Above 1G)