VHC-AAI-DH1150-002.4GHz Wireless Headphone System (Transmitter)

2.4GHz Wireless/Wired Headphone DH1150US (Transmitter:DH115UST, Receiver:DH115USR) 8003764 Instruction Manual PDF created with pdfFactory trial version www.pdffactory.com 2 INTRODUCTION Thank you for purchasing this system! This 2.4GHz stereo wireless headphone system offers you advances in wireless transmission technology so that you can listen to ultra stereo sound from your audio components upto 50 meters. The transmitter is compatible to any audio sources, say DVD player, CD player, i-pod, MP3, TV set, VCR, Hi-Fi system or radio. FEATURES 1. 2.4GHz FHSS Digital technology. 2. High quality stereo sound that is virtually interference-free. 3. Transmission is not restricted solely to line of sight 4. Digital Pairing System on Headphone & Transmitter 5. Electronic Volume Control on Headphones 6. Low Power indicator on headphone 7. Automatic battery recharging 8. Auto Shut-off on headphone 9. Auto On/Off RF function on transmitter 10. 3.5mm Line in feature for corded headphone application (1.5 meters) 11. Operating distance up to 50 meters PACKAGING 1. RF receiver headphone 2. RF transmitter 3. 6V 300mA power adapter 4. 3.5mm to 3.5mm cable (1.5 meters) 5. 3.5mm jack to RCA cable 6. Instruction Manual PDF created with pdfFactory trial version www.pdffactory.com 3 INSTALLATION TRANSMITTER 1. Connect the mains adapter provided to an electrical outlet. 2. Connect the mains adapter to the DC IN input connector located on the transmitter rear panel. 3. Use the audio cable attached with the transmitter to connect audio outputs on audio sources like TV set, Hi-Fi system, ipods, VCR or radio-cassette player. 4. Turn the switch to ON and the Green LED indicator will light up. The Blue LED indicator will light up when audio source is on. If the Blue indicator led remains off, switch on the audio source and increase its output level until the Blue indicator light comes on. POWER SIGNAL PDF created with pdfFactory trial version www.pdffactory.com 4 HEADPHONE RECEIVER Press the Power button on the right hand side Headphone ‘cup’for 3seconds to turn the wireless function on - the Blue LED light will flash. The headphones are now linked up (paired*) with the Dongle and the Blue LED light will be on continuously. OPERATIONS To start up this system and enjoy the music, please take following steps: 1. Connect the power adapter between the transmitter and wall outlet., the LED on the transmitter will light up in green. 2. Connect the transmitter with your audio source, turn the source ON, the LED will turn from Green to Blue. 3. Turn on the headphone receiver by pressing ON/OFF switch, LED will then be Blue flashes. 4. If the LED on the headphone is OFF immediately, please put the headphone back to the transmitter for recharging. 5. When the audio link is established, LEDs turns to Blue and music comes out. 6. If the LED on the headphone remains in Blue flashes, please check with troubles shooting processes. 7. When listening is ended, turn OFF the headphone. ① ② ③ ④ 1. Power LED Indicator 2. Power Key 3. Vol+, Pair, Vol- 4. 3.5mm Audio In Jack PDF created with pdfFactory trial version www.pdffactory.com 5 NOTE: If the LED on headphone remains in Blue flashes and does not work, start Pairing process by pressing the Pair button for 3 seconds on the transmitter and the headphone simutaneously until the Blue LEDs flash. The LEDs will change to solid Blue when pairing process is finished. To both protect the transmitter and save power, the transmitter will automatically switch off after approximately 4 minutes if there is no audio signal, or the signal that it receives from the audio source is too weak for proper reception. If however the signal returns to an acceptable level, then the transmitter will automatically switch back on. The headphone receiver will automatically shut off if getting no signal from transmitter in 15 minutes. PDF created with pdfFactory trial version www.pdffactory.com 6 CHARGING THE BATTERIES 1. Switch OFF the receiver headphone. 2. To recharge the headphone batteries, place the headphone on the transmitter, taking care to ensure that the charge contacts touch the transmitter's charge pins and the LED on the headphone will light up in red when charging is finished the headphone LED will be green. 3. Be sure to charge new batteries for 12 hours before using them for the first time in the headphones. The red indicator light will be on continuously during battery charging. PDF created with pdfFactory trial version www.pdffactory.com 7 Wired Headphone Application The headphone can be applied in corded mode. Simply connect the headphone and the audio source by the supplied 1.5 meters audio cable. You will then enjoy the audio in wired mode. WARNINGS: ** Never use another type of battery or non-rechargeable batteries to replace the rechargeable batteries. When the headphones are not in use, switch OFF the headphones to avoid damaging the batteries. ** The batteries must be fully charged before first use. An initial 5 hours charge is required to guarantee an acceptable service life for the rechargeable batteries. Always ensure that the headphones are switched to the OFF position while the batteries are charging. ** 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. PDF created with pdfFactory trial version www.pdffactory.com 8 Battery warning: Caution: Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type. Safety warning: Battery shall not be exposed to excessive heat such as sunshine, fire or the like. a. Do not dispose of electrical products in the general waste and ensure the used product or batteries are disposed safel…

Text truncated - open the document above for the full version.

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: 2012-06-05 Test report no.: 60.870.12.014.01F Model no.: DH115UST 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.: 60.870.12.014.01F Model no.: DH115UST 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.: 60.870.12.014.01F Model no.: DH115UST

TRANSMITTER BOTTOM VIEW Transmitter rating label Size: 36x20mm Black background, white font, back glue. unit: mm Scale 1:1 24.0 1 4 . 0 RECEIVER HEADPHONE RATING LABEL Size: 24x20mm Black background, white font, back glue. Unit: mm Scale: 1:1 inside view Manufacture : Acoustic Arc International Ltd. Made in China 2.4GHz wireless headphone DH115USR IC:255A-8003764 Manufacture : Acoustic Arc International Ltd. Made in China 2.4GHz wireless headphone DH115USR IC:255A-8003764 2.4GHz Wireless Transmitter DH115UST Manufacture : Acoustic Arc International Ltd. DC in: 6V 300mA FCC ID:VHC-AAI-DH1150-00 Made in China IC:255A-8003764 2.4GHz Wireless Transmitter DH115UST Manufacture : Acoustic Arc International Ltd. DC in: 6V 300mA FCC ID:VHC-AAI-DH1150-00 Made in China IC:255A-8003764 DH1150US FCC IC 認證 rating label artwork 36.0 2 0

Page 1 of 3 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong. Appendix C Date: 2012-06-05 Test report no.: 60.870.12.014.01F Model no.: DH115UST Photos of EUT – Internal 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.: 60.870.12.014.01F Model no.: DH115UST 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.: 60.870.12.014.01F Model no.: DH115UST

TEST REPORT Date: 2012-06-05 Report No.: 60.870.12.014.01F Page 1 of 32 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 Headphone System (Transmitter) Brand name: aai Model no.: DH115UST FCCID: VHC-AAI-DH1150-00 Date Samples Received: 2012-05-12 Date Tested: 2012-05-15 to 2012-05-31 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:- Ray Cheung Jeff Pong Project Engineer Operation Manager Wireless & Telecom Department Wireless & Telecom Department Report No.: 60.870.12.014.01F Page 2 of 32 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong CONTENT: Cover Page 1 of 32 Content Page 2-3 of 32 1.0 General Details 1.1 Test Laboratory Page 4 of 32 1.2 Applicant Details Page 4 of 32 1.3 Equipment Under Test [EUT] Page 5 of 32 1.4 Related Submittal(s) Grants Page 5 of 32 2.0 Technical Details 2.1 Investigations Requested Page 6 of 32 2.2 Test Standards and Results Summary Page 6 of 32 3.0 Test Methodology 3.1 Radiated Emission Page 7 of 32 3.2 Field Strength Calculation Page 7 of 32 3.3 Conducted Emission Page 7 of 32 4.0 Test Results 4.1 Number of Frequency Hopping Page 8 of 32 4.2 20dB Bandwidth Measurement Page 9-10 of 32 4.3 Hopping Channel Carrier Frequency Separation Page 11 of 32 4.4 Average Time of Occupancy Page 12-14 of 32 4.5 Pseudorandom Hopping Algorithm Page 15 of 32 4.6 Band Edge Measurement Page 16-17 of 32 4.7 Maximum Output Power Page 18-20 of 32 4.8 Out of Band Emissions and Emissions in Restricted Bands Page 21-25 of 32 4.9 Conducted Emission on AC Mains Page 26-30 of 32 Report No.: 60.870.12.014.01F Page 3 of 32 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong 5.0 RF Exposure Compliance Requirement Page 31 of 32 6.0 List of Measurement Equipments Page 32 of 32 Appendix A Photos of Test Setup Appendix B External EUT Photos Appendix C Internal EUT Photos Report No.: 60.870.12.014.01F Page 4 of 32 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong 1.0 General Details 1.1 Test Laboratory SEM. Test Compliance Service Co., Ltd 3/F, Jinbao Commerce Building, Xin’an Fanshen Road, Bao’an District, Shenzhen Registration Number: 994117 Tested by: John Zhi 1.2 Applicant 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.: 60.870.12.014.01F Page 5 of 32 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong 1.3 Equipment Under Test [EUT] Description of EUT Product Description: 2.4GHz Wireless Headphone System (Transmitter) Model No.: DH115UST Brand Name: aai FCCID: VHC-AAI-DH1150-00 Rating: - DC 6.0V, 300mA powered by AC/DC power adaptor Operated Frequency: 2406 -2472 MHz No. of Operated Channel: 31 Accessories and Auxiliary Equipments: - iPhone - 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 Headphone System operated at 2.4GHz. 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. 1.4 Related Submittal(s) Grants This is a signal application subjected to Certificate Authorization. Report No.: 60.870.12.014.01F Page 6 of 32 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong 2.0 Technical Details 2.1 Investigations Requested Perform ElectroMagnetic Interference measurement in accordance with FCC 47CFR [Codes of Federal Regulations] Part 15 and ANSI C63.4: 2003 2.2 Test Standards and Results Summary Tables Test Condition Test Requirement Test Result Pass N/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 Power Section 15.247 ( b1 ) Out of Band Emission Section 15.247 ( d ) Radiated Emission in Restricted Band Section 15.247 ( d ) Conducted Emission on AC Mains Section 15.207 RF Exposure Section 15.247 ( i ) Antenna Requirement Section 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.: 60.870.12.014.01F Page 7 of 32 TÜV SÜD Hong Kong Ltd. 3/F, West Wing, Phase 2, 10 Science Park West Avenue, Shatin, Hong Kong 3.0 Test Methodology 3.1 Radiated 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 i…

Text truncated - open the document above for the full version.

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: 2012-06-05 Test report no.: 60.870.12.014.01F Model no.: DH115UST Photos of Test Setup – Radiated Emission 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.: 60.870.11.014.01F Model no.: DH115UST Photos of Test Setup – Conducted Emission