Wireless Headphones

Sony MDR-RF920RK

Sony MDR-RF920RK

MDRRF920RK Description:

Tired of tripping over cords, and accidentally ripping out headphone jacks? Go wireless, and listen to the freedom. The Sony MDR-RF920RK 900 MHz RF Wirless Headphones have a transmission range of 150 feet, allowing you to roam your house or yard without missing a beat (or word). The 900 MHz radio frequency delivers high quality sound, and the 30mm driver units provide deeper bass, lower distortion and a wider dynamic range.

These lightweight headphones are easily recharged by placing them on the transmitter, and the package includes rechargeable NiMH batteries.


Sony MDR-RF920RK Features:

• Wireless Design lets you move inside and outside your house and still enjoy music and TV sound, and lets you turn up the volume late at night without disturbing others.

• 150 Foot Transmission Range for listening enjoyment upstairs, downstairs, virtually everywhere in your home and outside in your backyard.

• 900 MHz Radio Frequency (RF) Transmission provides better sound quality and greater range.

• 30mm Diameter Driver Units are larger than many portable headphones for deeper bass, lower distortion and wider dynamic range; low frequency response extends down to 20Hz.

• PET Diaphragms ensure high rigidity for minimum distortion, and low mass for excellent high-frequency response.

• Ferrite Magnets combine high energy and small size for ample sound output.

• Comfortable Open-Air Type Supra-Aural Headphones fit securely for maximum frequency response reception.

• Double Headband with self-adjusting mechanism conforms to the curve of your head for a fit.

• Easy Rechargeable Battery System automatically charges the headphones when placed onto the transmitter.

• 3 Transmission Channels Available helps ensure optimum signal reception; convenient sliding selector control on the side of the transmitter.

• Automatic Power On/Off for both headphones and transmitter conserves battery life; transmitter turns on when it senses an input signal; headphones turn on when you place them on your head.

• Complete Kit is supplied, which includes transmitter, headphones, connecting cord, UniMatch® plug adapter and AC power supply.

• Supplied Connecting Cord goes directly to headphone output of your high fidelity system for easy connection to hi-fi system, TV or VCR.

• FM Transmission System resists static and distortion for higher fidelity.

• Included Rechargeable NiMHBatteries provide up to 18 hours of playback when fully charged.

View Owner's Manual for MDR-RF920RK (Adobe Reader Required)

MDR-RF920RK Technical Specifications:
  • RF Modulation: Frequency modulation

  • RF Carrier Frequencies:
    Channel 1: 913.5 MHz
    Channel 2: 914.0 MHz
    Channel 3: 914.5 MHz

  • Effective Range: 150 feet

  • Power Requirements:
    AC 120Vm 60Hz when used with supplied AC power adapter which connects to the DC 9V jack.

  • Audio Input:
    Stereo L/R phono jacks
    Supplied 3 ft. connecting cord goes from stereo mini plug to L/R phono plugs
    Supplied UniMatch plug adapter converts stereo mini plug to stereo phono plug

  • Headphones:
    Type: Open air, dynamic, wireless
    Driver unit: 30mm diameter, dome type
    Diaphragm: PET
    Magnet: Ferrite
    Headband: Double band, self-adjusting
    Frequency Response: 20-20,000Hz
    Sensitivity: 105 dB/mW
    Impedance: 24 ohms at 1 kHz
    Tuning: Manual
    Volume: Rotary control
    Power Handling Capacity: 1000mW (IEC)

  • General:
    Transmitter Range: 150 feet (46m)
    Power Requirements: Headphones: NiMH battery (supplied)
    Transmitter: 9V AC with supplied adapter

  • Power:
    Battery Life: Approx 18 hours with fully charged Ni-MH battery (included)
    Battery Life: Up to 28 hours with optional AAA Alkaline type batteries

  • Supplied Accessories:
    AC Adapter, 9V, Connecting cord
    UniMatch® plug adapter

  • Optional Accessories:
    Audio Cord: RK-G136, RK-C310, RK-C315
    Plug Adapter: PC-236HG

  • Weight: Headphones: 9.5 oz (270g) w/batteryTransmitter: 6.9 oz (195g)

  • Dimensions: Transmitter: 5.25" x 4.9" x 5.35" (133 x 124 x 136mm)
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