Sony MDR-IF240RK Infrared Wireless Home Stereo Headphone System

Key Features

• 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 hours of battery life with optional AA alkaline battery; up to 30 hours 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