AAO3301197T900MHz 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.: 0519757 FCC ID: AAO3301197T Equipment Photographs Model : 33-1197 (External) INTERTEK TESTING SERVICE Report No.: 0519757 FCC ID: AAO3301197T Equipment Photographs Model : 33-1197 (External) INTERTEK TESTING SERVICE Report No.: 0519757 FCC ID: AAO3301197T Equipment Photographs Model : 33-1197 (External)

INTERTEK TESTING SERVICE Report No.: 0519757 FCC ID: AAO3301197T Equipment Photographs Model : 33-1197 (Internal) INTERTEK TESTING SERVICE Report No.: 0519757 FCC ID: AAO3301197T Equipment Photographs Model : 33-1197 (Internal) INTERTEK TESTING SERVICE Report No.: 0519757 FCC ID: AAO3301197T Equipment Photographs Model : 33-1197 (Internal) INTERTEK TESTING SERVICE Report No.: 0519757 FCC ID: AAO3301197T Equipment Photographs Model : 33-1197 (Internal)

Description: 900 MHz Rechargeable Analog Wireless Stereo Headphone Transmitter Section U201 C203 U202 C208 Q204 Z201 and C209 are used to build the regulator circuit for DC power. When you press the Tact SW201 once, the MCU U203 controls the Q203 Q202 Q201 to generate 8V DC power (TX_+8v) which provide power for transmitter RF section, Power LED D202 lights on then. X201 resonator provides the clock signal for MCU U203, SW201 is tact switch to toggle the power ON and OFF. D204 R212 R211 and R210 are used to build the battery recharge circuit. When the receiver headset is putting on the transmitter, the batteries will be charging, the Charge LED D203 will light on to indicate it is in charging. JK1 JK2 are the stereo sound signal inputs, U204 and U205 are Compressor IC to improve the dynamic range, C247 R235 R236 C232 R226 and R227 are the pre-emphasis circuit to improve SNR. VR201 and VR202 adjust the AF level in order to achieve the desired FM modulation level. U206 is PLL IC, X202 is the crystal provides the reference clock signal for U206. The TX frequency is controlled by the MCU. Q206 Q209 L201 L209 VD201 and VD202 are used to build the VCO circuit, R250 C260 R251 C261 R252 C262 C296 R274 C297 R275 and C298 are the Low passed filter circuit, Q207 and Q210 are buffer, Q208 and Q211 are used to build the PA circuit, L206 L207 R266 L208 and C284 are the antenna matching circuit. FCC ID: AAO3301197T

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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: AAO3301197T). 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: AAO3301197T) Transmitter 0519757 TC/el November 11, 2005 INTERTEK TESTING SERVICES FCC ID: AAO3301197T 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: AAO3301197T ii MEASUREMENT / TECHNICAL REPORT RadioShack Corporation − MODEL: 33-1197 FCC ID: AAO3301197T November 11, 2005 This report concerns (check one:) Original Grant X Class II Change Equipment Type: Low Power Transmitter (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 C for intentional 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: AAO3301197T 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 Measured Bandwidth ................................................................................27 8.2 Discussion of Pulse Desensitization .........................................................28 8.3 Calculation of Average Factor ..................................................................29 8.4 Emissions Test Procedures ......................................................................30 INTERTEK TESTING SERVICES FCC ID: AAO3301197T 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.pdf Test Report Conducted Emission Test Result conducted.pdf T…

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Band Edge Plot FCC ID: AAO3301197T

Report No.: 0519757 Charging mode AC mains Ctrl No.: PAGE 1 Tested By:Hong, Report No.:0519757 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.: 0519757 Charging mode AC mains Ctrl No.: NA Tested By:Hong, Report No.:0519757 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:0519757 Configuration Photographs Worst-Case Radiated Emissions (Front View) Model : 33-1197 Fig.1 FCC ID: AAO3301197T INTERTEK TESTING SERVICE Report No:0519757 Configuration Photographs Worst-Case Radiated Emissions (Back View) Model : 33-1197 Fig.2 FCC ID: AAO3301197T

INTERTEK TESTING SERVICE Report No:0519757 FCC ID: AAO3301197T i Configuration Photographs Worst-Case Line-Conducted Emissions (Front View) Model : 33-1197 INTERTEK TESTING SERVICE Report No:0519757 FCC ID: AAO3301197T ii Configuration Photographs Worst-Case Line-Conducted Emissions (Back View) Model : 33-1197 INTERTEK TESTING SERVICE Report No:0519757 FCC ID: AAO3301197T iii Configuration Photographs Worst-Case Line-Conducted Emissions (Side View) Model : 33-1197