BY4LFDAS2.4GHz Wireless Digital Audio Sender

LF-DAS Digital Audio Sender LF-DAS OWNER’S MANUAL 12 MONTH LIMITED WARRANTY Digital Audio Sender LF-DAS Audiovox Electronics Corporation (the company) warrants to the original purchaser of this product that should this product or any part thereof, under normal use and conditions, be proven defective in material or workmanship within 12 months from the date of original purchase, such defect(s) will be repaired or replaced with reconditioned product (at the company’s option) without charge for parts and repair labor. To obtain repair or replacement within the terms of this warranty, the product along with any accessories included in the original packaging is to be delivered with proof of warranty coverage (e.g. dated bill of sale), specification of the defect(s), transportation prepaid, to the company at the address shown below. DO NOT RETURN THIS PRODUCT TO THE RETAILER. The warranty does not extend to costs incurred for the installation, removal or reinstallation of the product. The warranty does not apply to any product or part thereof which, in the opinion of the company, has suffered or been damaged through alteration, improper installation, mishandling, misuse, neglect, accident, or by removal or defacement of the factory serial number/bar code label(s). THE EXTENT OF THE COMPANY’S LIABILITY UNDER THIS WARRANTY IS LIMITED TO THE REPAIR OR REPLACEMENT PROVIDED ABOVE AND, IN NO EVENT, SHALL THE COMPANY’S LIABILITY EXCEED THE PURCHASE PRICE PAID BY PURCHASER FOR THE PRODUCT. This warranty is in lieu of all other express warranties or liabilities. ANY IMPLIED WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, SHALL BE LIMITED TO THE DURATION OF THIS WARRANTY. ANY ACTION FOR BREACH OF ANY WARRANTY HERUNDER INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY MUST BE BROUGHT WITHIN A PERIOD OF 18 MONTHS FROM DATE OF ORIGINAL PURCHASE. IN NO CASE SHALL THE COMPANY BE LIABLE FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES FOR BREACH OF THIS OR ANY OTHER WARRANTY, EXPRESS OR IMPLIED, WHATSOEVER. No person or representative is authorized to assume for the Company any liability other than expressed herein in connection with the sale of this product. Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation if incidental or consequential damage so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights and you may also have other rights that vary from state to state. Audiovox Electronics Corporation, 150 Marcus Blvd., Hauppauge, NY 11788 TERK and the TERK logo are registered trademarks of AUDIOVOX Corp. For customer service and technical information:: 1.800.290.6650 T6021-LF-DAS-OM 4X5.qxp 2007.1.30 4:25 PM Page C4 6. Do not use liquid cleaners or aerosol cleaners to clean your LF-DAS. Clean only with a damp cloth. 7. This product should be operated only from the type of power source indicated on the marking label. 8. To reduce the risk of electric shock, do not disassemble this product, but take it to a qualified serviceperson if service or repair work is required. Opening or removing covers may expose you to dangerous voltages or other risks and will void the warranty. Incorrect reassembly can cause electric shock when the product is subsequently used. 9. Unplug your LF-DAS from the wall outlet and contact a qualified electronic service technician if any of the following should occur: A. The plug is damaged or the cord has been broken or frayed. B. Liquid has been spilled into the product. C. The product has been exposed to rain or water. D. The product does not operate normally by following the operating instructions. E. The product has been dropped or otherwise damaged and will not work. F. The product exhibits a distinct change in performance. • No repairs to the unit(s) should be attempted by the customer. LF-DAS 2 0perating Precautions Thank you for purchasing your Terk LF-DAS Digital Audio Sender. Your Terk “Digital Music Anywhere” system allows you to listen to your music library from your computer, iPod, MP3, CD player, or portable DVD player through a stereo system or other audio source in your house. Precautions: To ensure safe and effective operation, please be sure to read and understand the following precautions before operating your TERK Digital Audio Sender. The following basic safety precautions should always be followed to reduce the risk of fire, electric shock and personal injury: 1. Read and understand all of the instructions in this manual. 2. Follow all warnings and instructions indicated in the manual and on the product itself. 3. Do not use your LF-DAS in or near any body of water, such as a bath tub, washbowl, kitchen sink, or laundry tub, in a wet basement, or in or near a swimming pool. 4. Be sure to place your LF-DAS on a stable, level surface. Placing the product on any unstable surface may cause the product to fall. 5. Do not attempt to clean your LF-DAS while it is plugged in. Unplug the product from the wall outlet before cleaning. LF-DAS 1 T6021-LF-DAS-OM 4X5.qxp 2007.1.30 4:25 PM Page C2 RF Emissions Information This equipment has been tested and found to comply with the limits of a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If the equipment does cause harmful interference to a radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged try to correct the interference by one or more of the following measures: •Reorient or relocate the receiver unit. •Increase the separation between the equ…

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1 Mike Kuo From: Hsieh [[email protected]] Sent: Friday, March 09, 2007 4:40 AM To: Mike Kuo Subject: Re: Trans Electric Co Ltd, FCC ID: BY4LFDAS, Assessment NO.: AN07T6548, Notice#1 Attachments: Confidentiality Request.pdf; 07-01-MAS-187-01_Test Report.pdf Confidentiality Request.pdf (1... 07-01-MAS-187-01 _Test Report.p... Dear Mike, Re-Q#1: Attached please find the revise test report. Re-Q#2: The EUT is a lower power device with about 5mW only output power and less than 1 dBi antenna gain. I think the description of "20 cm separation distance requirement" is not needed add in the user manual. Re-Q#3: Attached please find the revise confidentiality letter. Any other questions please feel free to contact with me. Thank you. Best regards, Joe ----- Original Message ----- From: <[email protected]> To: <[email protected]> Cc: <[email protected]> Sent: Thursday, March 01, 2007 1:48 AM Subject: Trans Electric Co Ltd, FCC ID: BY4LFDAS, Assessment NO.: AN07T6548, Notice#1 > FYI: DSS (Frequency hopping S.S.) equipment code is selected but this > device was tested per DTS test procedure, so I have changed the > equipment code from DSS to DTS on the TCB application form. > > The output power entered in the TCB application form is 10 mW which > does not agree with highest measured output power (5.21 mW). > > Question #1: Based upon 6dB BW measurement, the widest BW measured is > 1.8 MHz. However, while doing RF power measurement, 1 MHz RBW is used > which is less than 6dB BW. Per FCC measurement procedures, when > measuring the output power, the RBW shall be greater than 6dB BW. > Please redo the output power measurement and submit the revised test report. > > Question #2: Please add 20cm separation distance requirement in the > user manual. > > Question #3: Operational description is listed as confidential > document but only contains general information extract from the user manual. > Please remove operational description from the request for > confidentiality letter. > 2 > Best Regards > > Mike Kuo > > The items indicated above must be submitted before processing can > continue on the above referenced application. Failure to provide the > requested information within 30 days of the original e-mail date may > result in application dismissal and forfeiture of the filing fee. > Also, please note that partial responses increase processing time and > should not be submitted. Any questions about the content of this > correspondence should be directed to the e-mail address listed below the name of the sender. >

ETC Report No.: 07-01-MAS-187-01 Page A1 of A2 FCC ID. :BY4LFDAS ANNEX A: EXTERNAL CONSTRUCTION PHOTOS OF EUT 1. Outside view 1 of EUT 2. Outside view 2 of EUT ETC Report No.: 07-01-MAS-187-01 Page A2 of A2 FCC ID. :BY4LFDAS 3. Adaptor

ETC Report No.: 07-01-MAS-187-01 Page B1 of B4 FCC ID. :BY4LFDAS ANNEX B: INTERNAL CONSTRUCTION PHOTOS OF EUT 1. Inside View 1 of EUT 2. Inside View 2 of EUT ETC Report No.: 07-01-MAS-187-01 Page B2 of B4 FCC ID. :BY4LFDAS 3. Front view of PCB1 4. Rear view of PCB1 ETC Report No.: 07-01-MAS-187-01 Page B3 of B4 FCC ID. :BY4LFDAS 5. Front view of PCB2 6. Front view of PCB2 ETC Report No.: 07-01-MAS-187-01 Page B4 of B4 FCC ID. :BY4LFDAS 7. Rear view of PCB2

Operation description 1. Connect to computer Use the USB or 3.5mm stereo audio cable. • Connect to iPod, MP3 or CD player Use the 3.5mm stereo audio cable. • Connect to stereo system Use the 3.5mm stereo Y-Type patch cable. 2.Connect the 9V AC adapter, then plug the other end into a standard AC outlet. The power indicator lights.For USB connection, the AC adapter to the transmitter is not needed 3. Slide to Line for connecting to a stereo device,or to USB for connecting to a computer 4.. Turn on the audio source and stereo system.The transmitter and receiver link automatically,and the power indicator of the receiver lights. 5. The transmitter has 8 channels. If you cannot hear clear sound or the receiver’s power indicator does not light, press CH repeatedly to select a channel with clear sound. 6.Adjust the audio source’s volume to the desired level. 7. To connect to a PC, open the Sound and Multimedia control panel and select USB Audio Device from the Audio tab. To connect to a Mac, select USB Speakers as your audio output. 8.When you change the music source from Line to USB and there is no sound, try restarting your music application (such as Windows Media Player). 9. When you unplug the audio cable or USB cable and plug it again, sound may be lost for 3-5 seconds. 10. Connect the AC adapter to the transmitter only after connecting to an audio source. 11. Unplug the AC adapter from the AC outlet before unplugging it from the transmitter or receiver.

ETC Report No. : 07-01-MAS-187-01 Sheet 1 of 53 Sheets FCC ID. :BY4LFDAS Rev. No 1.0 CONFORMANCE TEST REPORT FOR FCC 47 CFR, Part 15 Subpart C Report No.: 07-01-MAS-187-01 Client: TRANS ELECTRIC CO., LTD. Product: 2.4 GHz Wireless Digital Audio Sender Model: LF-DAS FCC ID: BY4LFDAS Manufacturer/supplier: TRANS ELECTRIC CO., LTD. Date test item received: 2007/01/25 Date test campaign completed: 2007/02/02 Date of issue: 2007/03/09 The test result only corresponds to the tested sample. It is not permitted to copy this report, in part or in full, without the permission of the test laboratory. Total number of pages of this test report: 53 pages Total number of pages of photos: External photos 2 pages Internal photos 4 pages Setup photos 2 pages Test Engineer Checked By Approved By Eric Lin James Joe Hsieh ELECTRONICS TESTING CENTER, TAIWAN NO.8, LANE 29, WENMING RD., LESHAN TSUEN, GUISHAN SHIANG, TAOYUAN COUNTY, TAIWAN 33383, R.O.C. TEL: (03) 3276170~4 INT: +886-3-3276170~4 FAX: (03) 3276188 INT: +886-3-3276188 ETC Report No. : 07-01-MAS-187-01 Sheet 2 of 53 Sheets FCC ID. :BY4LFDAS Rev. No 1.0 Client : TRANS ELECTRIC CO., LTD. Address : 765, Sec.2, Chungsan Rd., Huatang, Changhua, Taiwan, R.O.C. Manufacturer : TRANS ELECTRIC CO., LTD. Address : 765, Sec.2, Chungsan Rd., Huatang, Changhua, Taiwan, R.O.C. EUT : 2.4 GHz Wireless Digital Audio Sender Trade name : TERK Model No. : LF-DAS Power Source : Adapter : JOD-28U-03 Input: 120Vac, 60Hz, 4W Output: DC 9VDC, 200mA Regulations applied : FCC 47 CFR, Part 15 Subpart C (2006) The testing described in this report has been carried out to the best of our knowledge and ability, and our responsibility is limited to the exercise of reasonable care. This certification is not intended to believe the sellers from their legal and/or contractual obligations. The compliance test is only certified for the test equipment and the results of the testing report relate only to the item tested. The compliance test of this report was conducted in accordance with the appropriate standards. It’s not intention to assure the quality and performance of the product. This report shall not be reproduced except in full, without the approval of ETC. This report must not be used by the client to claim product endorsement by NVLAP or any agency of the U.S. Government. Laboratory Introduction: Electronics Testing Center, Taiwan is recognized, filed and mutual recognition arrangement as following: 1 ISO9001: TüV Product Service 2 ISO/IEC 17025: BSMI, CNLA, DGT, NVLAP, CCIBLAC, UL, Compliance 3 Filing: FCC, Industry Canada, VCCI 4 MRA: Australia, Hong Kong, New Zealand, Singapore, USA, Japan, Korea, China, APLAC through CNLA 5 FCC Registration Number: 90588, 91094, 91095 NVLAP Lab Code 200133-0 ETC Report No. : 07-01-MAS-187-01 Sheet 3 of 53 Sheets FCC ID. :BY4LFDAS Rev. No 1.0 Table of Contents Page 1 GENERAL INFORMATION .............................................................................................................. 5 1.1 Product Description..............................................................................................................................5 1.2 Characteristics of Device .....................................................................................................................5 1.3 Test Methodology................................................................................................................................5 1.4 Test Facility..........................................................................................................................................5 2 PROVISIONS APPLICABLE ............................................................................................................. 6 2.1 Definition.............................................................................................................................................6 2.2 Requirement for Compliance...............................................................................................................7 2.3 Restricted Bands of Operation.............................................................................................................9 2.4 Labeling Requirement..........................................................................................................................9 2.5 User Information................................................................................................................................10 3. SYSTEM TEST CONFIGURATION ............................................................................................... 11 3.1 Devices for Tested System.................................................................................................................11 4 CONDUCTED EMISSION MEASUREMENT............................................................................... 12 4.1 Standard Applicable...........................................................................................................................12 4.2 Measurement Procedure.....................................................................................................................12 4.3 Conducted Emission Data..................................................................................................................13 4.4 Result Data Calculation......................................................................................................................19 4.5 Conducted Measurement Equipment.................................................................................................19 5 ANTENNA REQUIREMENT ........................................................................................................... 20 5.1 Standard Applicable...........................................................................................................................20 5.2 Antenna Construction and Directional Gain..................................................................................…

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ETC Report No. : 07-01-MAS-187-01 Sheet 1 of 2 Sheets FCC ID. :BY4LFDAS Photos of Radiation Measuring Setup ETC Report No. : 07-01-MAS-187-01 Sheet 2 of 2 Sheets FCC ID. :BY4LFDAS Photos of Conduction Measuring Setup