Wireless Stereo Headphones System Sony MDR-IF330RK

Sony Wireless Infared Stereo Headphones System MDR-IF330RK
Sony Wireless Infared Stereo Headphones System MDR-IF330RK
Item# MDR-IF330RK
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Product Description:

  • Automatic on/off for transmitter and headphones
  • 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
  • Rechargeable battery, supplied
  • Easy connection to TV, VCR and audio systems, through the supplied connecting cord and plug adapter
  • Complete kit including transmitter and headphones
  • Two audio inputs let you switch between sources, for example, a Hi-Fi Receiver and a television
  • 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 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 power switch for both the headphones and transmitter conserves battery life; when the transmitter senses an input signal, it turns on; 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 wavelength880nm
  • Infrared ModulationFrequency modulation
  • Infrared Carrier FrequenciesRight 2.8MHz, Left 2.3MHz


  • Power RequirementsAC 120V, 60Hz when used with supplied AC power adaptor, which connects to the DC 9V jack
  • Audio InputStereo L/R phono plugs; supplied 3-foot connecting cord goes from stereo mini plug or phone plug to L/R phono plugs
  • Effective Range24 feet (7m); 10 feet (3m) at <+->45
  • Power On/OffAutomatic On/Off switch


  • TypeOpen-air, Dynamic, Cordless
  • Drive Unit30mm
  • DiaphragmPET
  • MagnetFerrite
  • Frequency Response18 - 22,000Hz
  • Power RequirementsDC 1.5V, 1 NiCad Rechargeable Battery (supplied) or 1 AA battery (optional)
  • Battery LifeApprox. 30 hours with supplied NiCad battery; approx. 100 hours with optional alkaline battery
  • Recharging TimeApprox. 24 hours