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Sony MDR-RF985-RK, MDRRF985RK, MDRRF985-RK, MDRRF-985RK, MDR-RF985RKC, MDR-RF985RK-C, Sony MDR-RF985RK RF Wireless Stereo Headphone System

Brand: Sony  |  Model: MDR-RF985RK  |  Catalog #308805
Sony MDR-RF985RK Radio Frequency Wireless Stereo Headphones System

Product Details
Your Price: $109.40
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Let your mind wander as your feet take you where they will with wireless headphones that fill your world with quality audio. Listen where you like up to approximately 150 ft away on 40mm driver units that highlight the highest highs while delivering deep, rich lows. Slip on the extremely comfortable headband and enjoy a long battery life that lasts up to 25 hours. A quick 3.5 hours is all that's needed to charge the included rechargeable battery fully. Best of all, a one-time simple setup is all it takes to achieve optimal RF signal reception, meaning you'll be on your way cutting the cord on wired listening in no time.


  • Cordless Headphones - Enjoy high-fidelity sound, at home, in wireless freedom.
  • Quality sound - Wireless radio-frequency transmission provides quality indoor transmission. (Up to approximately 150 ft)
  • Long-term comfort - The easy-adjust headband allows for long-term comfort and ease-of-use.
  • Fast charging - Quick charging your headphones is a breeze with the secure charging system. A 3.5 hour charge will produce a full charge of approximately 25 hours. recharge function.
  • Expressive sound - 40mm drivers deliver deeper bass and audio clarity for a superior home entertainment experience.

Audio Modes : Mute: Operates when RF signal is weak or not received
Channel Selection : Select by a slide switch
Driver Unit : 40 mm
Effective Range : Approximately 150 feet (45 m)
Frequency Response : 10-22000 Hz
Transmitter : Ch1: 915.5 MHz, Ch2: 916.0 MHz, Ch3: 916.5 MHz (selective, FM Stereo)
Tuning : Manual tuning via switch on both base and headphones
Volume Control : Yes (Rotary)
Design : Over-the-head, Home-music/movie/games
Diaphragm : PET
Headband : Wide, Easy-Adjust
Magnet : Ferrite
Power On/Off : Power turns ON when headphones are worn; Red LED illuminates
Type of Use : Home
Communications : Wireless Analog 900 mHz Radio Frequency
Headphone Type : Closed, Dynamic
Inputs and Outputs:
Audio In : Analog Phono Input (left/right), Analog Stereo Input mini jack (x1)
Battery Charging (Approx) : 3.5 H (to fully charge an empty battery); Battery is charged by placing MDR on TMR
Battery Life (Approx) : 25 H (with fully charged supplied Li-Ion battery pack)
Battery Type : Rechargeable Lithium-Ion rechargeable battery
Internal Power Supply : Transmitter: Supplied AC adapter (12 V, 200 mA)
Output Power : 5 mW + 5 mW
Power Requirements : DC 12 V (from supplied AC Adaptor)
Weights and Measurements:
Cord Length (Approx.) : Cord Length (Approx.): 39 3/8 in. (1.0 m) Stereo connecting cable
Dimensions (Approx.) : Transmitter: 8 5/8 x 4 1/4 x 3 7/8 in. (216 x 105 x 96 mm)
Weight (Approx.) : Headphones: Approximately 10.59 oz. (300 grams) Including supplied battery Transmitter: Approximately 7.7 oz. (220 grams)

Package Contemts:

  • Sony Headphones and Transmitter
  • Ac Adaptor
  • Connecting Cable

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