Sony MDR-IF540RK - Headphones - full size - infrared - wireless

Sony MDR-IF540RK - headphones

Key Features and Benefits: What is Infrared? Infrared transmission works by sending out infrared light signals from the transmitter to the headphones. Infrared signals are resistant to external noise and interference, but the headphones must be within line of sight of the transmitter because the signal can't pass through walls, furniture, or other obstacles. Sound 30 mm diameter drive units for deep bass, low distortion and wider dynamic range. PET diaphragms ensure high rigidity for minimum distortion. Ferrite magnets combine high energy and small size, for ample sound output. Features Mute function, wide headband, automatic headphones power switch and single volume control. Design Light weight so you can wear them comfortably for hours on end and open-air design lets you continue to hear ambient sound. Battery Rechargeable battery (supplied) 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. Transmission 24 foot transmission range for listening enjoyment throughout the room and 90������ transmission angle (maximum) for uninterrupted listening as you move around the room. Supplied Accessories Includes high-powered transmitter/recharger, headphones, rechargeable battery, connecting cable, UniMatch plug adapter and AC power adapter.