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Discontinued Product

Sony Wireless Radio Frequency Headphones - MDR-RF925RK

Abt Model: MDRRF925RK | UPC Code: 027242708259
This product is no longer available.

Product Details

Sony Wireless Radio Frequency Headphones, Model MDRRF925RK

No more fussing with messy wires. The MDR-RF925RK wireless headphones system gives you the freedom to travel up to 150 feet from your sound source while delivering stereo quality sound. This system includes Ni-MH rechargeable batteries, 900MHz RF wireless transmission and headphones with a 40mm driver for deep bass. An auto tuning feature conveniently scans up and down the band to automatically tune in channels. The MDR-RF925RK wireless headphones system enables an easy connection to a wide variety of sound sources.


  • 900MHz RF wireless transmission, FM stereo sound
  • Induction charging: not direct pin contact for ease
  • Volume control on ear piece, auto power On/Off


  • Frequency Range: FM stereo
  • Transmitter: Ch1:915.5MHz, Ch2:916.0MHz, Ch3:916.5MHz [selective]
  • Channel Selection: Select by a slide switch
  • Frequency Response: 38kHz (Sub Carrier frequency); 19kHz (Pilot tone)
  • Effective Range: Max. 150ft (46m) for signal reception distance
  • Headphone Type: Closed, dynamic
  • Driver Unit: 40mm
  • Diaphragm: PET
  • Magnet: Ferrite
  • Tuning: Manual Tuning
  • Frequency Response-2: 20-20,000Hz
  • Output Power: 5mW + 5mW
  • Volume Control: Yes (Rotary)
  • Headphone Type-2: Headband: Mold band with self adjusting mechanism for suspenders
  • Battery Type: Rechargeable Ni-MH battery pack (supplied); AAA x2 (not supplied)
  • Battery Life (Approx.): 18H (with fully charged supplied NiMH battery pack); 28H (with AAA type alkaline battery)
  • Battery Charging (Approx.): 16H (to fully charge an empty battery); Battery are charged by placing MDR on TMR
  • Power On/Off: Power turns ON when headphones are worn; Red LED light indicator
  • Noise Level: Mute operates when RF signal is weak or not received
  • Transmitter-2: 30-12,000Hz
  • Internal Power Supply: Transmitter: Supplied AC adapter (12V,200mA)
  • Power On/Off-2: Transmitter: ON, when signal sent at audio input

Approximate Weight:

  • Shipping: 2 lbs
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Key Features
900MHz RF Wireless Transmission/ FM Stereo Sound/ Induction Charging/ Volume Control On Ear Piece/ Auto Power On/Off/ Black Finish
More reasons to buy the Sony MDR-RF925RK from Abt Electronics
  • is an authorized dealer (Learn More).
  • The Sony MDR-RF925RK is Brand New.
  • The Sony MDR-RF925RK Ships in a Factory Sealed Box.
  • Abt ships this product for free!
Wired Or WirelessWireless
Ideal For Sports/WorkoutsNo
iPod ControlsNo
Mobile Phone ControlsNo
Sound IsolatingNoise Isolation
Noise CancelingNo
Power SwitchYes
Volume ControlYes
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