Sony MDR-IF240RK Wireless Stereo Headphones System

Get ready to rock with the MDR-IF240RK wireless stereo headphone system. This complete kit which includes a transmitter and headphones offers a lightweight open-air design. 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 degree. Permitting an easy connection to your home audio system TV or VCR these headphones provide a personal entertainment experience you can move to.

• Sony wireless stereo headphones system


• Complete kit Including transmitter and headphones


• Transmission range up to 24 feet


• Battery is automatically charged by placing headphones on the cradle


• Transmission coverage angle up to 90 degree


• Easy connection to home audio system TV or VCR


• 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


• 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 18Hz


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


• 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 22000Hz


• 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


• Infrared modulation frequency modulation


• Infrared carrier frequencies right 2.8MHz left 2.3MHz


• Transmitter power requirements AC 120V 60Hz when used with supplied AC power adaptor which connects to the DC 9V jack


• Audio input stereo L/R phono plugs; supplied 3-foot connecting cord goes from stereo mini plug or phone plug to L/R phono plugs


• Battery life approx. 35 hours with optional NiCad battery; approx. 60 hours with optional alkaline battery


• Recharging time approx. 24 hours


• Headphones weight 6.3 oz. (including battery)


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


• Please Check Sony.com for compatibility


• Black

• Color:Black

* All returns require an RMA (Return Merchandise Authorization) number, which can be obtained by contacting our Customer Service department.

Defective Returns
Defective unit must be returned back to us within 30 days of the original invoice date. Defective units are replaced for the same product only. Upon receipt of the defective product a new unit will be reshipped at no additional cost.

Non-Defective returns
Product must be returned back to us within 30 days of the original invoice date for a refund. No refunds after 30 days.

* All Return shipping costs is the sole responsibility of the customer under any circumstance.

Please review our Return Guidelines page for more information