Sony MDRIF240RK Wireless Headset

Go wireless with your music. The MDR-IF240RK wireless stereo headphone system features 30mm drive units for deep bass, up to 60 hours of battery life with an optional alkaline battery or up to 35 hours of battery life with the supplied NiHM rechargeable battery, and a transmission range up to 24 feet. Also utilize the transmission coverage angle-up to 90°. Permitting an easy connection to your home audio system, TV or VCR, these headphones provide a personal entertainment experience you can move to.

30 mm diameter drive units are larger than many portable headphones for deeper bass, lower distortion and wider dynamic range; frequency response extends down to a low 18 Hz

Rechargeable battery (supplied) saves repeated trips to the store; automatically recharges when you place the headphones on the supplied transmitter

Up to 100 hours1 of battery life with optional AA alkaline battery; up to 30 hours1 life with supplied rechargeable NiCad battery

Complete kit including high-powered transmitter/recharger, headphones, rechargeable battery, connecting cable, UniMatch® plug adapter and AC power adapter

90° transmission angle (maximum) for uninterrupted listening as you move around the room

PET diaphragms ensure high rigidity for minimum distortion; low mass for extended high-frequency response out to 22,000 Hz

Ferrite magnets combine high energy and small size, for ample sound output

Wide headband with a separate self-adjusting band conforms precisely to the curve of your head; stays comfortable, even after listening for hours on end

Mute function to avoid noise through the headphones; cuts out the sound when no audio signal is available

Automatic headphones power switch conserves battery life; the headphones turn on when you place them on your head

Single volume control in one earpiece conveniently adjusts the volume for both channels

Supplied connecting cord with Sony UniMatch® plug that goes to the headphone output of your high fidelity system, TV set or VCR; UniMatch system accommodates either the phone jack on high fidelity components or the minijack found on video components

Cordless design lets you move around the room and still enjoy music or TV sound tracks; lets you turn the volume up late at night -- without disturbing anyone else

Easy connection to TV, VCR and audio systems, through the supplied connecting cord and plug adapter

Light weight so you can wear them comfortably for hours on end

Open-air design lets you continue to hear ambient sound

High-power infrared transmitter incorporates multiple Light-Emitting Diodes (LEDs) for extended coverage range

24 foot transmission range for listening enjoyment throughout the room; lets you sit back from the TV set and still enjoy TV sound

Product Specifications Hardware Cord : None (Infrared)

Headphone Type : Open-air, Dynamic

Power Power Requirements : AC 120V, 60Hz when used with supplied AC power adaptor, which connects to the DC 9V jack

Recharging Time : 24 hours (Approx.)

General Design : Over-the-head, Home-music/movie/games

Diaphragm : PET

Headband : Wide, Self-adjusting

Magnet : Ferrite

Plug : UniMatch® Adapter

Power On/Off : Yes (Automatic On/Off switch)

Type of Use : Home

Inputs and Outputs Phono Input(s) : 1 (Stereo L/R phono plugs)

Audio Driver Unit : 30mm

Effective Range : 24 ft (7m); 10 ft (3m) at ±45°

Frequency Response : 18Hz - 22,000Hz

Infrared Carrier Frequencies : Right 2.8MHz, Left 2.3MHz; (Frequency modulation)

Volume Control : Rotary control

Accessories Supplied Rechargeable NiCad Battery (NC-AA-HJ) AC adapter Connecting cord UniMatch plug adapter