VHCAAIAH0810US0913 MHz Wireless Headphone System (Transmitter)

Page 1 of 3 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. Appendix B Date: 2011-05-23 Test report no.: 60.870.11.008.01F Model no.: AH0810UST (Transmitter) Photos of EUT – External EUT Photos Page 2 of 3 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. Test report no.: 60.870.11.008.01F Model no.: AH0810UST (Transmitter) Page 3 of 3 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. Test report no.: 60.870.11.008.01F Model no.: AH0810UST (Transmitter) AC/DC Adaptor

SCALE:1:1SCALE:1:1 2,4GHz 6V 300mA 2X1,2V Ni-MH (AA) FKH104EAN : 27012789 44 / 10 B Globaltronics GmbH& Co KG, Domstr. 19, D-20095 Hamburg E43250 Made in China 913MHz Wireless Transmitter AH0810UST DC IN: 6V 300mA Manufacture : Acoustic Arc International Ltd. FCC ID:VHC-AAI-AH0810US0 913MHz Wireless Receiver Made in China AH0810USR Manufacture : Acoustic Arc International Ltd. Batteries: 2x1.2V AAA R03/LR03 2 8 . 0 38.0 2 0 . 0 30.0 Transmitter rating label Size: 28x38mm White background, black font Receiver rating label Size: 20x30mm White background, black font AH0810US FCC ID RATING LABEL ARTWORK Headphone “L” side SPK- Cover-L Transmitter bottom view Made in China 913MHz Wireless Transmitter AH0810UST DC IN: 6V 300mA Manufacture : Acoustic Arc International Ltd. FCC ID:VHC-AAI-AH0810US0 913MHz Wireless Receiver Made in China AH0810USR Manufacture : Acoustic Arc International Ltd. Batteries: 2x1.2V AAA R03/LR03

Page 1 of 6 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. Appendix C Date: 2011.05.23 Test report no.: 60.870.11.008.01F Model no.: AH0810UST (Transmitter) Photos of EUT – Internal EUT Photos Page 2 of 6 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. Test report no.: 60.870.11.008.01F Model no.: AH0810UST (Transmitter) Page 3 of 6 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. Test report no.: 60.870.11.008.01F Model no.: AH0810UST (Transmitter) Page 4 of 6 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. Test report no.: 60.870.11.008.01F Model no.: AH0810UST (Transmitter) Page 5 of 6 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. Test report no.: 60.870.11.008.01F Model no.: AH0810UST (Transmitter) Page 6 of 6 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. Test report no.: 60.870.11.008.01F Model no.: AH0810UST (Transmitter)

TEST REPORT Date: 2011-05-23 Report No.: 60.870.11.008.01F Page 1 of 23 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. Applicant: Acoustics Arc international Ltd. Unit 311B, 3/F, IC Development Centre, No.6, Science Park West Avenue, Hong Kong Science Park, Shatin, N.T., Hong Kong Description of Samples:Model name: 913MHz Wireless Headphone System (Transmitter) Brand name: aai Model no.:AH0810UST FCCID:VHC-AAI-AH0810US0 Date Samples Received:2011-04-27 Date Tested:2011-05-07 to 2011-05-23 Investigation Requested:FCC Part 15 Subpart C, Section 15.249 Conclusions:The submitted product COMPLIED with the requirements of Federal Communications Commission [FCC] Rules and Regulations Part 15. The tests were performed in accordance with the standards described above and on Section 2.2 in this Test Report. Remarks:---- Checked by:Approved by:- Prudence PoonJeff Pong Technical ManagerProject Manager Wireless & Telecom departmentWireless & Telecom department Report No.: 60.870.11.008.01F Page 2 of 23 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. CONTENT: Cover Page 1 of 23 Content Page 2 of 23 1.0General Details 1.1Test Laboratory Page 3 of 23 1.2Applicant Details Page 3 of 23 1.3Equipment Under Test [EUT] Page 4 of 23 1.4 Equipment Modification Page 4 of 23 1.5 Related Submittal(s) Grants Page 4 of 23 2.0Technical Details 2.1Investigations Requested Page 5 of 23 2.2Test Standards and Results Summary Page 5 of 23 3.0Test Methodology 3.1Radiated Emission Page 6 of 23 3.2Field Strength Calculation Page 6 of 23 3.3Conducted Emission Page 6 of 23 4.0TestResults 4.1Field Strength ofFundamentaland Harmonics Page 7-9 of 23 4.2Spurious Radiated Emission Page 10-14 of 23 4.3Out of Band Emissions Page 15-16 of 23 4.4Bandwidth Measurement Page 17-19 of 23 4.5Conducted Emission Page 20-22 of 23 5.0List of Measurement Equipments Page 23 of 23 Appendix A Photos of Test Setup Appendix B External EUT Photos Appendix C Internal EUT Photos Report No.: 60.870.11.008.01F Page 3 of 23 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. 1.0General Details 1.1Test Laboratory Neutron Engineering Inc. B1, No.37, Lane 365, Yang-quang St, Nei-hu Distrist, Taipei, 114, Taiwan. Registration Number: 538587 Tested by: Ares Liu 1.2Applicant Details Applicant Acoustic Arc international Ltd. Unit 311B, 3/F, IC Development Centre, No. 6 Science Park West Avenue, Hong Kong Science Park, Shatin, N.T., Hong Kong Manufacturer Acoustic Arc international Ltd. Unit 311B, 3/F, IC Development Centre, No. 6 Science Park West Avenue, Hong Kong Science Park, Shatin, N.T., Hong Kong Report No.: 60.870.11.008.01F Page 4 of 23 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. 1.3Equipment Under Test [EUT] Description of EUT Model Name:913MHz Wireless Headphone System (Transmitter) Brand Name: aai Model Number: AH0810UST FCCID:VHC-AAI-AH0810US0 Rating:DC 6.0V 300mA powered by AC/DC adaptor Antenna Type:Integral Operated Frequency:912-914MHz No. of Channel:3 Accessories and Auxiliary Equipment:iPod EUT Exercising Software:None General Operation of EUT The Equipment Under Test (EUT) is a transmitter of wireless headphone system operated at 912 to 914 MHz. 1.4Equipment Modification No modification was made to the tested unit by TÜV SÜD Hong Kong Ltd. 1.5Related Submittal(s) Grants This is a single applicationofcertificationforthistransmitter. Report No.: 60.870.11.008.01F Page 5 of 23 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. 2.0Technical Details 2.1Investigations Requested Perform ElectroMagnetic Interference measurement in accordance with FCC 47CFR [Codes of Federal Regulations] Part 15: 2009 and ANSI C63.4: 2003. 2.2Test Standards and Results Summary Tables EMISSION Results Summary Test ConditionFCC Test RequirementTest Result PassFailedN/A Field Strength of Fundamental and Harmonics Part 15.249 (a),(e) Spurious Radiated Emission Part 15.249 (d) Part 15.209 Part 15.205 Out of Band Emissions Part 15.249 (d) Bandwidth Measurement Part 15.215 (c) Conducted Emission Part 15.207 Note: N/A - Not Applicable Report No.: 60.870.11.008.01F Page 6 of 23 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. 3.0Test Methodology 3.1Radiated Emission The sample was placed 0.8m above the ground plane on a standard emission test site *. Measurements in both horizontal and vertical polarities were performed. During the test, each emission was maximized by: having the EUT continuously working, investigated all operating modes, rotated about all 3 axis (X, Y & Z) and considered typical configuration to obtain worst position, manipulating interconnecting cables, rotating turntable, varying antenna height from 1m to 4m in both horizontal and vertical polarizations. The emissions worst-case are shown in Test Results of the following pages. *On astandard emission test sitewith a metal ground plane filed with the FCC pursuant to section 2.948 of the FCC rules, with Registration Number: 538587. 3.2Field Strength Calculation The field strength at 3 m was established by adding the meter reading of the spectrum analyzer to the factors associated with antenna correction factor, cable loss, preamplifiers and filter attenuation. The equation is expressed as follow: FS = R + System Factor System Factor = AF + CF + FA – PA Where FS = Net Field Strength in dBuV/m at 3 meters. R = Reading of Spectrum Analyzer / Test Receiver in dBuV. AF = Antenna Factor in dB. CF = Cable Attenuation Factor in dB. FA = Filter Attenuation Factor in dB. PA = Preamplifier Factor in dB. FA and PA are only be used for the measuring frequency above 1 GHz. 3.3Conducted Emissions The EUT was placed on a non-metallic table 0.8m above the horizontal metal reference place and 0.4m from a vertical ground plane which is connected to t…

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Page 1 of 2 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. Appendix A Date: 2011-05-23 Test report no.: 60.870.11.008.01F Model no.: AH0810UST (Transmitter) Photo of Test Setup – Radiated Emission Front side Back side Page 2 of 2 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. Test report no.: 60.870.11.008.01F Model no.: AH0810UST (Transmitter) Photo of Test Setup – Conducted Emission Front side