2AAYF-AF3333 channel FM wireless intercom

DATE : Jan 16, 2014 Nemko Canada Inc 303 River Road Ottawa, Ontario, Canada K1V 1H2 Attn: Director of Certification Authority to Act as Agent On our behalf, I appoint _ Shenzhen BATT Testing Technology Co., Ltd. 11F, Bldg.B, Xinbaoyuan, Xinanhu Commercial city, Bao’an District, Shenzhen, Guangdong, China _, to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, as specified by Nemko Canada Inc, still resides with Calford Technology Ltd../ Room 107, Wah Wai Centre, 38 – 40 Au Pui Wan Street, Fo Tan, Shatin, N.T., Hong Kong. Dated this Jan 16, 2014 Agency agreement expiration date: Usually Give 8 - 12 Months By: Vincent Cheung Signature Printed Title: Director On behalf of : Calford Technology Ltd. Telephone: 852-23307330

DATE : Jan 16, 2014 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AAYF-AF333 Product Name: 3 channel FM wireless intercom Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential: • Schematics • Block diagram • Operational Description • Part List & Tune up These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. Dated this Jan 16, 2014 Agency agreement expiration date: Usually Give 8 - 12 Months By: Vincent Cheung Signature Printed Title: Director On behalf of : Calford Technology Ltd. Telephone: 852-23307330

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3-CHANNEL FM WIRELESS INTERCOM FCC ID : 2AAYF-AF333 POWER : 6V DC, 800 mA 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. www.intertalk-sales.comMADE IN CHINA Model No. : AF333 Model No. : AF333

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RF Exposure Applicable Standard According to §1.1307(b)(5), systems operating under the provisions of this section shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. This is a Portable device. The Section 4.3.1 and Appendix A of KDB447498 D01 V05r01 was used as the guidance. Calculation Result (Worse Case): [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] · [vf(GHz)] =240/300 * 0.680= 0.54, this value is less than 7.5 for 10-g extremity SAR exclusion thresholds. The minimum test separation distance is decided by the following figure: 3 cm The extremity SAR measurement is not necessary.

Prediction of MPE limit at a given distance MW-CBDA-SMR-10W80-PS8, Uplink Outdoor Donar Antenna Equation from page 18 of OET Bulletin 65, Edition 97-01 where:S = power density P = power input to the antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna Maximum peak output power at antenna input terminal:23.70(dBm) Maximum peak output power at antenna input terminal:234.4228815(mW) Antenna gain(typical):2.15(dBi) Maximum antenna gain:1.640589773(numeric) Prediction distance:20(cm) Prediction frequency:462(MHz) MPE limit for uncontrolled exposure at prediction frequency:0.308(mW/cm^2) Power density at prediction frequency:0.076512(mW/cm^2) Maximum allowable antenna gain:8.198205719(dBi) Margin of Compliance:6.048205719 2 4R PG S p =

Shenzhen BATT Testing Technology Co., Ltd. Report No.: BATT201401012 FCC Page 1 of 43 FCC TEST REPORT Prepared For : Calford Technology Ltd. Product Name: 3 channel FM wireless intercom Model : AF333 Prepared By : Shenzhen BATT Testing Technology Co., Ltd. 11F, Bldg.B, Xinbaoyuan, Xinanhu Commercial city, Bao’an District, Shenzhen, Guangdong, China. Tel: 86-755-27753991 Fax: 86-755-27754182 Test Date: Jan 2, 2014 to Jan 14, 2014 Date of Report : Jan 15, 2014 Report No.: BATT201401012FCC Note: This report shall not be reproduced except in full, without the written approval of Shenzhen BATT Testing Technology Co., Ltd. This document may be altered or revised by Shenzhen BATT Testing Technology Co., Ltd. personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample Shenzhen BATT Testing Technology Co., Ltd. Report No.: BATT201401012FCC Page 2 of 43 TABLE OF CONTENTS 1.0 TEST CERTIFICATION............................................................................... 3 2.0 Test Equipment......................................................................................... 5 3.0 Technical Details........................................................................................ 6 4.0 Test Lab Details......................................................................................... 6 5.0 Power Line Conducted Emission Test............................................................ 7 6.0 Frequency Tolerance.................................................................................. 11 7.0 Emission Bandwidth and Mask..................................................................... 14 8.0 Unwanted Radiation................................................................................... 22 9.0 Modulation Characteristics........................................................................... 25 10.0 Maximum transmitter Power (Conducted Output Power).................................... 29 11.0 Radiated Emission on Receiving Mode........................................................... 30 12.0 FCC ID Label............................................................................................ 33 13.0 Photo of Test Setup and EUT View................................................................ 34 Shenzhen BATT Testing Technology Co., Ltd. Report No.: BATT201401012FCC Page 3 of 43 1 TEST CERTIFICATION Product: 3 channel FM wireless intercom Model: AF333 Applicant: Calford Technology Ltd. Room 14, 3 FLR., Sing Win Fty. Building, 15 – 17 Shing Yip St., Kowloon, Hong Kong. Manufacturer: Guangdong Samzuk Technology Development Co., Ltd High-Tech Zone Xinggong Avenue East Heyuan City（2/F of Minghuang Electrical Engineering Company Building） Trade Mark: N/A Tested: Jan 02, 2014 to Jan 14, 2014 Test Voltage: DC6V Powered by power supply Operational Frequency Range: 462.5625MHz, 462.5875MHz, 462.6125MHz Modulation Type: FM Frequency Selection By Key button Channel Number 3 Channel provided to the EUT Antenna: Integral antenna with Gain 2.0 dBi Power Supply: Model No.: NLA080060W1A1 Input: 100-240V, 50/60Hz, 0.2A Max; Output: 6V, 800mA FCC ID: 2AAYF-AF333 Applicable Standards: FCC Part 95, Subpart B and Subpart E; The test report was prepared by Shenzhen BATT Testing Technology Co., Ltd.and found compliance with the requirements set forth in the technical standards mentioned above. The results of testing in this report apply only to the product/system, which was tested. Other similar equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties. Shenzhen BATT Testing Technology Co., Ltd. Report No.: BATT201401012FCC Page 4 of 43 Prepared by : Hellen XiaoAssistant Reviewer : Mike Yong/Supervisor Approved & Authorized Signer : Jones Song/ Manager Shenzhen BATT Testing Technology Co., Ltd. Report No.: BATT201401012FCC Page 5 of 43 2.0 Test Equipments Instrument Type Manufacturer Model Serial No. Date of Cal. Due Date ESPI Test Receiver ROHDE&SCHWA RZ ESPI 3 100379 2013-05-27 2014-05-26 EMI Test Receiver Rohde & Schwarz ESU 1302.6005.26 2013-05-27 2014-05-26 Impuls-Begrenzer ROHDE&SCHWA RZ ESH3-Z2 100281 2013-05-27 2014-05-26 Loop Antenna EMCO 6502 00042960 2013-05-27 2014-05-26 ESPI Test Receiver ROHDE&SCHWA RZ ESI26 838786/013 2013-05-27 2014-05-26 3m OATS -- -- N/A 2013-05-27 2014-05-26 Horn Antenna SCHWARZBECK BBHA 9170 BBHA9170399 2013-05-27 2014-05-26 Horn Antenna SCHWARZBECK BBHA 9120 D143 2013-05-27 2014-05-26 Power meter Anritsu ML2487A6K00003613 2013-05-27 2014-05-26 Power sensor Anritsu MA2491A32263 2013-05-27 2014-05-26 Bilog Antenna Schwarebeck VULB916 3 9163/142 2013-05-27 2014-05-26 LISN (Three Phase) Schwarebeck NSLK 8126 8126453 2013-05-27 2014-05-26 9*6*6 Anechoic -- -- N/A 2013-05-27 2014-05-26 EMI Test Receiver RS ESCS30 100139 2013-05-27 2014-05-26 LISN RS ESH2-Z5 100225 2013-05-27 2014-05-26 LISN (Three Phase) Schwarebeck NSLK 8126 8126453 2013-05-27 2014-05-26 Pre-Amplifier A.H. PAM-01261415261 2013-05-27 2014-05-26 Modulation Analyzer HP 8901B 3104A03367 2013-06-16 2014-06-15 Shenzhen BATT Testing Technology Co., Ltd. Report No.: BATT201401012FCC Page 6 of 43 3.0 Technical Details 3.1 Summary of test results The EUT has been tested according to the following specifications: Standard Test Type Result Notes FCC Part 15.207 Conducted Emission Pass Complies FCC Part 95.639 Maximum Transmitter Power Pass Complies FCC Part 95.637 Modulation Characteristic Pass Complies FCC Part 95.633 Occupied Bandwidth Pass Complies FCC Part 95.633 Emission Mask Pass Complies FCC Part 95.626 Frequency Tolerance Pass Complies FCC Part 95.635 Spurious Radiated Emissions Pass Complies 4.0 Test LAB Details All Tests Performed at Name: Shenzhen Emtek Co., Ltd. Address: Bldg. 69, Majialong Industry Zone,,Nanshan District,Shenzhen, Guangdong, 518052China FCC Registration Number: 406365 Shenzhen BATT Testing Technology Co., Ltd. Report No.: BATT201401012F…

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Conducted test View-- Radiated emission test view