AAO3301197R900MHz Wireless Headphone

Please read this user’s guide before installing, setting up and using your new product www.radioshack.com 33-1197 Rechargeable Analog Wireless Stereo Headphones Thank you for purchasing RadioShack Rechargeable Analog Wireless Stereo Headphones. It is designed with PLL (Phase-Locked Loop) circuitry and built-in antenna for precise tuning. It uses the 900MHz band to deliver high-quality stereo sound to almost anywhere in or around your home, up to 150 feet away from your stereo. Rechargeable Analog Wireless Stereo Headphones 1/8-to-1/4-inch stereo adapter 1/8-inch stereo plug adapter RCA cable 12V, 250mA AC/DC adapter User’s Guide what’s included You need to power the transmitter by the supplied 12V, 250mA AC/DC adapter when you use the headphones. Plug the supplied AC adapter’s barrel plug into the transmitter’s DC IN 12V jack, then plug the adapter into a standard AC outlet. • Use only 12V DC,250mA AC/DC adapter to power the transmitter. • Always connect the AC/DC adapter to the transmitter before you connect it to AC power. When you finish, disconnect the adapter from AC power before you disconnect it from the transmitter. power the transmitter Installing the batteries The headphones requires three AAA alkaline batteries or Ni-Ca/NiMH rechargeable batteries (neither supplied) for power. 1. Remove the battery compartment cover on the left earpiece. 2. If you are using alkaline batteries, set ALK/ RCH inside the compartment to ALK. If you are using rechargeable batteries, set ALK/ RCH to RCH. 3. Place the batteries in the compartment according to the polarity symbols (+ and –) marked in the compartment. 4. Replace the battery compartment cover. charging rechargeable batteries The transmitter has a built-in charger. You can use the transmitter to charge rechargeable batteries(700mAh,not supplied) in your headphones. 1. Place the headphones on the transmitter and power the transmitter to charge the rechargeable batteries, the transmitter’s CHARGE indicator lights up green. • Rechargeable batteries can be continuously charged over several days. • The batteries can be charged with the transmitter set to on or off. • When the batteries have been completely discharged, it takes about 10 hours to completely recharge the batteries. 2. The CHARGE indicator turns off when charging is completed, remove the headphones from the transmitter. power the headphones Note Note 1. Connect one end of the supplied audio patch cord to the transmitter’s AUDIO IN jacks (white plug to L AUDIO IN and red plug to R AUDIO IN). 2. Follow one of the steps below to connect the transmitter to your audio source. • If your audio source’s has output jacks, connect the white and red plugs at the other end of the RCA cable directly to the audio source’s corresponding left (white) and right (red) audio jacks. • If your audio source has a 1/8-inch headphones jack, connect the white and red plugs of the RCA cable to the white and red phono jacks of the 1/8- inch stereo plug adapter. Then insert the adapter into the audio source’s headphones jack. • If your audio source has a 1/4 -inch headphones jack, insert the 1/8-inch stereo plug adapter into the back of the supplied 1/8-to-1/4-inch stereo adapter. Then insert the adapter into the audio source’s HEADPHONE jack. 3. Power the transmitter. installing your headphones 1/8-inch stereo plug adapter 1/8-to-1/4-inch stereo adapter OR OR ALK/RCH CHARGE indicator POWER indicator Power AUDIO IN jacks RCA cable 12V, 250mA AC/DC adapter transmitter 33-1197.indd 111/02/2005 5:08:26 PM 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 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 this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Consult your local RadioShack store or an experienced radio/TV technician for help. • If you cannot eliminate the interference, the FCC requires that you stop using your headphones. Changes or modifications not expressly approved by RadioShack may cause interference and void the user’s authority to operate the equipment. 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. the FCC wants you to know This product is warranted by RadioShack against manufacturing defects in material and workmanship under normal use for ninety (90) days from the date of purchase from RadioShack company-owned stores and authorized RadioShack franchisees and dealers. For complete warranty details and exclusions, check with your local RadioShack store. RadioShack Customer Relations 300 RadioShack Circle, Fort Worth, TX 76102 04/04 limited 90-day warranty Transmitter: Carrier Frequency ................... ....................................................................... 911.4 and 915.6 MHz Power Source .................. ....................................................................... .12V DC, 250 mA adapter Modulation Method ............... ................................................................................FM Modulation Receiver: Sensitivity ................... ................................................…

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INTERTEK TESTING SERVICE Report No.: 0519741 FCC ID: AAO3301197R Equipment Photographs Model : 33-1197 (External) INTERTEK TESTING SERVICE Report No.: 0519741 FCC ID: AAO3301197R Equipment Photographs Model : 33-1197 (External)

INTERTEK TESTING SERVICE Report No.: 0519741 FCC ID: AAO3301197R Equipment Photographs Model : 33-1197 (Internal) INTERTEK TESTING SERVICE Report No.: 0519741 FCC ID: AAO3301197R Equipment Photographs Model : 33-1197 (Internal) INTERTEK TESTING SERVICE Report No.: 0519741 FCC ID: AAO3301197R Equipment Photographs Model : 33-1197 (Internal) INTERTEK TESTING SERVICE Report No.: 0519741 FCC ID: AAO3301197R Equipment Photographs Model : 33-1197 (Internal) INTERTEK TESTING SERVICE Report No.: 0519741 FCC ID: AAO3301197R Equipment Photographs Model : 33-1197 (Internal)

Description: 900 MHz Rechargeable Analog Wireless Stereo Headphone Receiver Section Slide switch SW2 is power switch. SW1 is Battery selector, when you use Rechargeable batteries, the switch is set to Charge and if the Alkaline battery is used, you must set the switch to Alk. U104 and C137 are used to build the regulator circuit. When the SW2 is set to ON, the Power LED lights on. R52 R53 Q15 and Q16 are the battery detect circuit. If the batteries voltage is low, the Power LED1 will be flash, you must replace fresh battery or recharge for the batteries. U105 is the AF power circuit. VR101 is volume control knob. Q18 Q19 VR2 Q20 and Q17 are the mute circuit which control the AF PA U105. U101 and U102 are the Expander to improve the SNR. U103 is alternative Expander IC which can replace IC U101 and U102. Q1 and Q2 are used to build the LNA circuit. Fil1 is the band passed filter for image rejection. Q3 is the mixer circuit. U1 is PLL IC which is controlled by the MCU U2. Q4 L8 and VD1 are used to build the VCO circuit, Q5 and Q6 are the LO buffer, C16 C17 R14 R15 C18 are used to build the passive LPF. Q8 Q9 Q10 Q11 and Q12 are used to build the IF AMP circuit, Fil2 Fil3 Fil4 and Fil5 are ceramic filter which improve the 1 st image rejection and adjacent channel selection. U106 L10 and L11 are the demodulation circuit to generate the LR stereo signal. Q22 Q21 VR4 and VR3 are used to build the AF AMP circuit and produce a suitable AF signal to the next stage expander. FCC ID: AAO3301197R

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Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. Tel: (852) 2173 8888 Fax: (852) 2785 5487 Website: www.hk.intertek-etlsemko.com November 11, 2005 RadioShack Corporation 100 Throckmorton St., Suite 1300, Fort Worth, TX 76102-2802. Dear Dwayne Campbell: Enclosed you will find your file copy of a Part 15 report (FCC ID: AAO3301197R). For your reference, TCB will normally take another 15-20 days for reviewing the report. Approval will then be granted when no query is sorted. Please contact me if you have any questions regarding the enclosed material. Sincerely, Billy Chow Assistant Manager Enclosure • The test results reported in this test report shall refer only to the sample actually tested and shall not refer or be deemed to refer to bulk from which such a sample may be said to have been obtained. • This report shall not be reproduced except in full without prior authorization from Intertek Testing Services Hong Kong Limited • For Terms And Conditions of the services, it can be provided upon request. • The evaluation data of the report will be kept for 3 years from the date of issuance. Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. Tel: (852) 2173 8888 Fax: (852) 2785 5487 Website: www.hk.intertek-etlsemko.com RadioShack Corporation Application For Certification (FCC ID: AAO3301197R) Superheterodyne Receiver 0519741 TC/el November 11, 2005 INTERTEK TESTING SERVICES FCC ID: AAO3301197R i LIST OF EXHIBITS INTRODUCTION EXHIBIT 1: General Description EXHIBIT 2 : System Test Configuration EXHIBIT 3: Emission Results EXHIBIT 4: Equipment Photographs EXHIBIT 5: Product Labelling EXHIBIT 6: Technical Specifications EXHIBIT 7: Instruction Manual EXHIBIT 8: Miscellaneous Information INTERTEK TESTING SERVICES FCC ID: AAO3301197R ii MEASUREMENT / TECHNICAL REPORT RadioShack Corporation − MODEL: 33-1197 FCC ID: AAO3301197R November 11, 2005 This report concerns (check one:) Original Grant X Class II Change Equipment Type: Superheterodyne Receiver (example: computer, printer, modem, etc.) Deferred grant requested per 47 CFR 0.457(d)(1)(ii)? Yes No X If yes, defer until: date Company Name agrees to notify the Commission by: date of the intended date of announcement of the product so that the grant can be issued on that date. Transition Rules Request per 15.37? Yes No X If no, assumed Part 15, Subpart B for unintentional radiator − the new 47 CFR [10-01-04 Edition] provision. Report prepared by: Billy Chow Intertek Testing Services 2/F., Garment Center, 576 Castle Peak Road, Kowloon, Hong Kong. Phone: 852-2173-8491 Fax: 852-2371-0914 INTERTEK TESTING SERVICES FCC ID: AAO3301197R iii Table of Contents 1.0 General Description ............................................................................................... 2 1.1 Product Description.......................................................................................... 2 1.2 Related Submittal(s) Grants ............................................................................ 2 1.3 Test Methodology ............................................................................................ 3 1.4 Test Facility ...................................................................................................... 3 2.0 System Test Configuration.................................................................................... 5 2.1 Justification ...................................................................................................... 5 2.2 EUT Exercising Software ................................................................................. 5 2.3 Special Accessories......................................................................................... 5 2.4 Equipment Modification ................................................................................... 6 2.5 Measurement Uncertainty................................................................................ 6 2.6 Support Equipment List and Description ......................................................... 6 3.0 Emission Results.................................................................................................... 8 3.1 Field Strength Calculation................................................................................ 9 3.2 Radiated Emission Configuration Photograph .............................................. 11 3.3 Radiated Emission Data ................................................................................ 12 3.4 Conducted Emission Configuration Photograph ........................................... 15 3.5 Conducted Emission Data ............................................................................. 16 4.0 Equipment Photographs...................................................................................... 18 5.0 Product Labelling................................................................................................. 20 6.0 Technical Specifications...................................................................................... 22 7.0 Instruction Manual ................................................................................................ 24 8.0 Miscellaneous Information .................................................................................. 26 8.1 Discussion of Pulse Desensitization .............................................................. 27 8.2 Calculation of Average Factor ....................................................................... 28 8.3 Emissions Test Procedures ........................................................................... 29 INTERTEK TESTING SERVICES FCC ID: AAO3301197R iv List of attached file Exhibit Type File Description Filename Test Report Test Report report.pdf Operation Description Technical Description descri.pdf Test Setup Photo Radiated Emission radiated photos.pdf Test Setup Photo Conducted Emission conducted photos…

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Report No.: 0519741 Charging mode AC mains Ctrl No.: PAGE 1 Tested By:Hong, Report No.:0519741 Scan Settings (1 Range) |--------- Frequencies -----------||----------- Receiver Settings ------------| Start Stop Step IF BW Detector M-Time Atten Preamp OpRge 150k 30M 5k 10k PK+AV 10ms AUTO LN OFF 60dB Final Measurement: x QP / + AV Meas Time: 1 s Subranges: 16 Acc Margin: 20dB Transducer No. Start Stop Name 21 9k 30M EW0698 0 10 20 30 40 50 60 70 80 90 dBuV 100 0.15 MHz 30 110 F15Q F15A NA Report No.: 0519741 Charging mode AC mains Ctrl No.: NA Tested By:Hong, Report No.:0519741 Scan Settings (1 Range) |--------- Frequencies -----------||----------- Receiver Settings ------------| Start Stop Step IF BW Detector M-Time Atten Preamp OpRge 150k 30M 5k 10k PK+AV 10ms AUTO LN OFF 60dB Final Measurement Results: Frequency QP Level QP Limit MHz dBuV dBuV 0.28000 31.6 60.8 0.30500 31.5 60.1 Frequency AV Level AV Limit MHz dBuV dBuV no Results * limit

INTERTEK TESTING SERVICE Report No:0519741 Configuration Photographs Worst-Case Radiated Emissions (Front View) Model : 33-1197 Fig.1 FCC ID: AAO3301197R INTERTEK TESTING SERVICE Report No:0519741 Configuration Photographs Worst-Case Radiated Emissions (Back View) Model : 33-1197 Fig.2 FCC ID: AAO3301197R

INTERTEK TESTING SERVICE Report No:0519741 FCC ID: AAO3301197R i Configuration Photographs Worst-Case Line-Conducted Emissions (Front View) Model : 33-1197 INTERTEK TESTING SERVICE Report No:0519741 FCC ID: AAO3301197R ii Configuration Photographs Worst-Case Line-Conducted Emissions (Back View) Model : 33-1197 INTERTEK TESTING SERVICE Report No:0519741 FCC ID: AAO3301197R iii Configuration Photographs Worst-Case Line-Conducted Emissions (Side View) Model : 33-1197