VHC-AAI-DS0820US0Wireless Speaker System

2.4G DIGITAL STEREO WIRELESS SPEAKER SYSTEM INSTRUCTION MANUAL INTRODUCTION This stereo wireless speaker system applies the advanced digital wireless technology that enables you to enjoy music and TV sound anywhere inside or outside your home. You can simply connect the transmitter with any audio source such as i-pod, TV, DVD, Hi-Fi and CD/MP3 player. A. PACKAGING 1. RF transmitter 2. 2x RF speakers 3. AC adapter for transmitter 4. 2x AC adapters for speakers 5. Remote Control 6. RCA to 3.5mm audio cable 7. 3.5mm jack to RCA adapter B. FEATURES 1. 2.4G Digital RF technology 2. Digital Pairing System on speakers & transmitter 3. Electronic Volume Control on Speakers 4. Water-proof Speakers 5. 2-ways drivers on speakers 6. Stereo Effect on Speakers 7. Operating distance up to 150 feet. 8. No line of sight limitation. 9. Auto ON/OFF control on Transmitter 10. Auto Shut-Off on Speakers 11. Remote control unit C. COMPONENT IDENTIFICATION 1. TRANSMITTER 2. SPEAKERS 3. REMOTE CONTROL UNIT D. INSTALLATION 1. TRANSMITTER A. Connect the supplied AC power adapter to an electrical wall outlet. B. Plug the AC power adapter in the DC jack located on the rear of the transmitter. C. The rear of the transmitter has one RCA audio jacl that can be connected to audio output jack of TV, i-pod, DVD, and CD/MP3 players or to headphone/earphone jack with the audio cable provided. When the power adapter connection is finished, the LED of transmitter will light up in Green. When the audio cable connection is finished and turn on the audio source, the LED will turn from Green to Blue. 2. SPEAKERS A.Insert 8 ‘C’ size ALKALINE batteries (not included) into the battery compartment with correct polarity at the bottom of the speakers or connect the 12V power adapter to the DC input jack on the bottom of each speaker, then plug it to the wall AC outlet. B. Press Power button and turn the speakers ON. The Power/Standby LED will light up in Blue 3. REMOTE CONTROL A. Remove the battery cover at the rear of the remote control unit and insert 2 pcs “AAA” size batteries (included) into the battery compartment with the correct polarity. B. Place back the cover and close the battery compartment. E. OPERATION 1. Connect the power adapter between wall jack and transmitter. The LED will turn to Green. 2. Turn on the audio source (TV or audio component) to which the transmitter isconnected with. The LED will turn from Green to Blue. 3. Press the ID button on speakers and transmitter for best performance in your location. 4. Turn on the Power button on the speaker and adjust the volume by pressing “+” and “-“ for desired listening level. Volume can also be adjusted by pressing “+” and “-” button located on the remote control unit. Note: 5. If you cannot find the best reception sound on speakers, press the "ID" button for 3sec. on the transmitter and speakers to get the pairing again. The pairing processes will be finished after hearing a “Do” sound. SWITCHING OFF 1. If there is no audio input signal to transmitter in 4 minutes, transmitter will go to standby mode and LED will change from Blue to Green. 2. If the power adapter is unplugged, the LED on transmitter will turn off. 3. Speaker will turn to standby mode if there is no input signal to transmitter and LED will become Green. Speaker will automatically shut off when standby mode continues for 5 minutes. 4. Speaker will also turn to standby model if you press the POWER button on the remote control to Green LED. Speaker will automatically shut off after 5 minutes. 5. At standby mode, speaker will turn to On automatically after getting signal from transmitter. OTHER CONTROL 1. Select volume up and down on Speakers or Remote Control Unit. 2. If you hear interference from other components, press the “Pair” button on transmitter and speakers for best reception channel matching. F. TROUBLE SHOOTING NO SOUND -Ensure the AC adapter is fully inserted into the AC outlet and the power connection input on the transmitter. -Ensure the speaker is switch ON. -Speaker’s battery capacity is too low, replace with new batteries or connect the AC adapters to the speakers. -Ensure the TV or audio component is ON. -The connected audio / video equipment is not playing. Start playing the equipment. -The volume of speaker is too low, adjust the volume to an appropriate level. -Re-start the pairing process again by pressing the "ID" button for 3sec. on the transmitter and speakers. The pairing processes will be finished after hearing a “Do” sound. DISTORTED -Press the “Pair” button on the speakers until matching the frequency of the transmitter. -Press the “Pair” button on the transmitter. -Battery capacity is too low. Replace with the new battery. -Ensure the volume level of speakers is adjusted properly. -The speaker is too far from transmitter, move closer. -The input level of the audio signal is too low. Turn up the volume of the audio source equipment. G. TECHNICAL SPECIFICATIONS Transmission Mode: UHF stereo Carrier Frequency: 2.4G Digital Operation Voltage: Transmitter, DC 6V 300mA adapter Speaker, DC 12V 1 A adapter or 8 X “C”size Alkaline batteries (not included) Remote Control Unit, 2 X ‘AAA’ sizegreen batteries (included) Frequency Response: 30Hz – 20KHz Distortion: 0.5% S/N Ratio: 75dB (typical) Channel Separation: 70dB (Typical) Operation Distance: Up to 150feet Output Power:2x 5W (Max) WARNING : Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. 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 protection against harmful interfere…

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Acoustic Arc international ltd. PHOENIX TESTLAB GmbH Product Certification Königswinkel 10 D 32825 Blomberg To Whom It May Concern: Please be advised that Acoustic Arc international ltd. authorizes TÜV SÜD Hong Kong Ltd. to act on our behalf, until otherwise notified, for applications submitted to PHOENIX TESTLAB GmbH (PTL). Thank you for your attention to this matter. [Acoustic Arc international ltd] TÜV SÜD Hong Kong Ltd. ______________________ _____________________ [George Chan] Nicolas Cheng [Deputy General manager] Assistance Project Manager [1 st Feb. 2011]

Ersteller: U. Rodemeier Revision: 03 Erstelldatum: 03.08.01 Datum: 4.10.2006 Seite 1 von 1 Request for Confidentiality PHOENIX TESTLAB GmbH Date: 1 st Jan. 2011 Product Certification Königswinkel 10 D 32825 Blomberg RE: Certification Application Model : DS0820US FCC ID: VHC-AAI-DS0820US0 Confidentiality Request Pursuant to Sections 0.457 and 0.459 of the Commission’s Rule, the applicant hereby requests confidential treatment of information accompanying this application as outlined below: • Schematics • Block Diagram • Operational Description 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, disclosure od this application and all accompanying documentation will not be made before the date of the GRANT for this application ́. Thank you for your attention in this matter. Applicant’s Company Acoustic Arc international ltd. address : Unit 311B, 3/F, IC Development Centre, No. 6 Science Park West Avenue, Hong Kong Science Park, Shatin, N.T. Hong Kong. Signature : ____________________________ Job Title and Dept. : Deputy General manager

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: 2011-01-28 Test report no.: 60.870.11.001.01F Model no.: DS0820US (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.: 60.870.11.001.01F Model no.: DS0820US (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.: 60.870.11.001.01F Model no.: DS0820US (Transmitter) Ancillary - AC/DC adaptor

Remote control rating label Size: 24x20mm Size: 28x36mm 28.0 36.0 24.0 20.0 Scale 1:1 Scale 1:1 DS0820US RATING LABEL ARTWORK Remote control Wireless Speaker rating label or Batteries: 8 x 1,5V (C/LR14/Baby) Made in China 2.4GHz Wireless Speaker Model No.:DS0820US DC in: 12V 1A or Batteries: 8 x 1,5V (C/LR14/Baby) Made in China 2.4GHz Wireless Speaker Model No.:DS0820US DC in: 12V 1A Wireless speaker bottom view Remote control Model No.: DS0820US Batteries: 2 x 1,5V (R03/LR03/AAA) FCC ID: VHC-AAI-DS0820US0 Made in China Remote control Model No.: DS0820US Batteries: 2 x 1,5V (R03/LR03/AAA) FCC ID: VHC-AAI-DS0820US0 Made in China Size: 24x36mm 24.0 36.0 Scale 1:1 Transmitter bottom view 2.4GHz Transmitter Made in China Model No.: DS0820US DC in: 6V 300mA FCC ID: VHC-AAI-DS0820US0 2.4GHz Transmitter Made in China Model No.: DS0820US DC in: 6V 300mA FCC ID: VHC-AAI-DS0820US0 Transmitter rating label

Page 1 of 4 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. Appendix C Date: 2011-01-28 Test report no.: 60.870.11.001.01F Model no.: DS0820US (Transmitter) Photos of EUT – Internal EUT Photos Page 2 of 4 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. Test report no.: 60.870.11.001.01F Model no.: DS0820US (Transmitter) Page 3 of 4 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. Test report no.: 60.870.11.001.01F Model no.: DS0820US (Transmitter) Page 4 of 4 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. Test report no.: 60.870.11.001.01F Model no.: DS0820US (Transmitter)

TEST REPORT Date: 2011-01-28 Report No.: 60.870.11.001.01F Page 1 of 29 TUV SUD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong 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 Description of Samples:Model name: 2.4GHz Wireless Speaker System (Transmitter) Brand name: aai Model no.:DS0820US / DS0820C FCCID:VHC-AAI-DS0820US0 Date Samples Received:2011-01-06 Date Tested:2011-01-06 to 2011-01-26 Investigation Requested:FCC Part 15 Subpart C, Section 15.247 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:- Nicolas ChengJeff Pong Assistant Project ManagerProject Manager Wireless & Telecom DepartmentWireless & Telecom Department Report No.: 60.870.11.001.01F Page 2 of 29 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong CONTENT: Cover Page 1 of 29 Content Page 2-3 of 29 1.0General Details 1.1Test Laboratory Page 4 of 29 1.2Applicant Details Page 4 of 29 1.3Equipment Under Test [EUT] Page 5 of 29 1.4 Related Submittal(s) Grants Page 5 of 29 2.0Technical Details 2.1Investigations Requested Page 6 of 29 2.2Test Standards and Results Summary Page 6 of 29 3.0Test Methodology 3.1Radiated Emission Page 7 of 29 3.2Field Strength Calculation Page 7 of 29 3.3Conducted Emission Page 7 of 29 4.0Test Results 4.1 Number of Frequency Hopping Page 8 of 29 4.2 20dB Bandwidth Measurement Page 9-10 of 29 4.3 Hopping Channel Carrier Frequency Separation Page 11 of 29 4.4 Average Time of Occupancy Page 12-14 of 29 4.5 Pseudorandom Hopping Algorithm Page 15 of 29 4.6 Band Edge Measurement Page 16-17 of 29 4.7 Maximum Output Power Page 18-19 of 29 4.8 Out ofBand Emissionsand Emissions in Restricted Bands Page 20-23 of 29 4.9 Conducted Emission on AC Mains Page 24-27 of 29 Report No.: 60.870.11.001.01F Page 3 of 29 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong 5.0RFExposure Compliance Requirement Page 28 of 29 6.0List of Measurement Equipments Page 29 of 29 Appendix A Photos of Test Setup Appendix B External EUT Photos Appendix C Internal EUT Photos Report No.: 60.870.11.001.01F Page 4 of 29 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 EMC Laboratoryregistered by FCC with FCCRegistration Number:538587 1.2Applicant Details Applicant Acoustic Arc InternationalLtd. 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 InternationalLtd. Unit 311B, 3/F., IC Development Centre, No.6 Science Park West Avenue, Hong Kong Science Park, Shatin, N.T. Hong Kong Report No.: 60.870.11.001.01F Page 5 of 29 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 Product Description:2.4G Wireless Speaker System(Transmitter) ModelNo.:DS0820US/DS0820C Brand Name: aai FCCID:VHC-AAI-DS0820US Rating:-DC6.0V,300mApowered by AC/DC power adaptor Operated Frequency:2406-2472MHz No. of Operated Channel:15 Accessories and Auxiliary Equipments:- AC/DC power adaptor. Antenna Type:Integral Manufacture of Antenna:Acoustic Arc International Ltd. Antenna Gain:0dBi Antenna Model:N/A General Operation of EUT The Equipment Under Test (EUT) is a Transmitter of the Wireless Speaker System operated at 2.4GHz. As per Client Declaration, the circuit design, PCB Layout, shieldingand interface ofDS0820USand DS0820C are identical, only the cosmetic are different. So we use DS0820US as a representative model to perform all testing. FHSS Operation Principle: This module is controlled by microchip to generate Pseudorandom Frequency Hopping Sequence, this module support 31 hopping channels. Refer to section 4.5 of this report to have more detail of Pseudorandom Hopping Algorithm. 1.4Related Submittal(s) Grants This is a signal application subjected to Certificate Authorization. Report No.: 60.870.11.001.01F Page 6 of 29 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 for FCC Verification 2.2Test Standards and Results Summary Tables Test ConditionTest RequirementTest Result PassN/A Number of Frequency Hopping Section 15.247 ( a1 ) 20dB Bandwidth Measurement Section 15.247 ( a1 ) Hopping Channel Carrier Frequency Separation Section 15.247 ( a1 ) Average Time of Occupancy Section 15.247 ( a1 ) Pseudorandom Hopping Algorithm Section 15.247 ( a1 ) Band Edge Measurement Section 15.247 Maximum Output PowerSection 15.247 ( b1 ) Out of Band EmissionSection 15.247 ( d ) Radiated Emission in Restricted Band Section 15.247 ( d ) Conducted Emission on AC Mains Section 15.207 RF ExposureSection 15.247 ( i ) Antenna RequirementSection 15.203 See note 1 Note 1 :The EUT uses a permanently attached antenna, which in accordance to Section 15.203, is considered sufficient to comply with the provisions of this section. Remark: N/A - Not Applicable Report No.: 60.870.11.001.01F Page 7 of 29 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…

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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: 2011-01-28 Test report no.: 60.870.11.001.01F Model no.: DS0820US (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.: 60.870.11.001.01F Model no.: DS0820US (Transmitter) Photo of Test Setup – Conducted Emission Front side