Sony 900MHz Wireless Headphones (MDRRF970RK-REF)

Detailed Features
What is Radio Frequency? Radio Frequency transmission works by sending our radio frequency signals from the transmitter to the headphones. Radio frequency signals allow high fidelity sound reproduction and have a large reception range that does not require keeping the headphones within line of sight of the transmission. Radio frequency signal quality can deteriorate due to external noise and interference in some settings. Design Comfortable fit with adjustable headband and complete coverage of the ear. Transmission 900MHz radio frequency transmission with up to 150 ft transmission range. Sound Noise reduction technology reduces interference and neodymium magnets give you a high fidelity sound reproduction. Battery Supplied rechargeable nickel-metal hydride battery automatically charge by placing the headphones on the transmitter base station; headphones charge via electromagnetic induction charging. Additional Features Volume control on ear piece, auto power On/Off Product Views Specifications Audio Audio Modes Mute: Operates when RF signal is weak or not received Channel Selection Select by a slide switch Driver Unit 40mm Effective Range 150ft (46m) Frequency Response Transmitter: 30-12,000Hz Transmitter Ch1: 915.5MHz, Ch2: 916.0MHz, Ch3: 916.5MHz [selective] Tuning Auto Tuning on headphones Volume Control Yes (Rotary) General Design Over-the-head, Home-music/movie/games Diaphragm PET Magnet Neomydium Power On/Off Power turns ON when headphones are worn; Red LED lights up Type of Use Home Hardware Headphone Type Headphone: Mold band with self adjusting mechanism for suspenders Inputs and Outputs Input(s) Stereo mini jack x1, Pin jack x2 (L/R) Power Battery Charging (Approx) 16H (to fully charge an empty battery); Charged by placing MDR on TMR Battery Life (Approx) 14H (with fully charged supplied NiMH battery pack); 22H (with AAA type alkaline battery) Battery Type Rechargeable Ni-MH battery pack (supplied); AAA x2 (not supplied) Internal Power Supply Transmitter: Supplied AC adapter (12V,200mA) Output Power 5mW + 5mW Power Handling Capacity 1,000mW Weights and Measurements Dimensions (Approx.) Transmitter: 216x 105 x 96mm Weight (Approx.) Transmitter: 220g 1 Documents
Warranty Card View | Download
PDF, 102K, 1 page
User Manual View | Download
PDF, 394K, 2 pages 1 Â2008 Sony Electronics Inc. Sony is a trademark of Sony. All other trademarks are property of their respective owners. Features and specifications are subject to change without notice. Non-metric weights and measures are approximate and may vary