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Sony MDR-RF985RK Wireless Radio Frequency Headphones

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About the Sony MDR-RF985RK

Enjoy clear sound with this Sony MD-RRF985RK over-the-ear headphones that include a transmitter and feature automatic tuning, so you can easily listen to music and more at a range of up to 150'. The easy-adjust headband offers comfort.

Sony MDR-RF985RK Includes

  • "Sony MDR-RF985RK Wireless Radio Frequency Headphones
  • Lithium-Ion Battery
  • RCA-to-1/8"" Mini Stereo Cable
  • AC Adapter
  • Transmitter Sony 90 Day Warranty"

Summary of Customer Reviews


Sony MDR-RF985RK Features

  • Cordless Headphones: Enjoy high-fidelity sound, at home, in wireless freedom
  • Long-term comfort: The easy-adjust headband allows for long-term comfort and ease-of-use
  • Expressive sound: 40mm drivers deliver deeper bass and audio clarity for a superior home entertainment experience
  • Quality sound: Wireless radio-frequency transmission provides quality indoor transmission. (Up to approximately 150 ft)
  • 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

Sony MDR-RF985RK Specifications

Headphone Type Closed, Dynamic
Headphones 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
Communication Wireless Analog 900 MHz Radio Frequency
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 150ft (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)
Audio In Analog Phono Input (left/right)
Analog Stereo Input mini jack
Battery Charging 16H (to fully charge an empty battery)
Battery is charged by placing MDR on TMR
Battery Life 18H (with fully charged supplied NiMH battery pack)
28H (with AAA type alkaline battery)
Battery Type Rechargeable Ni-MH battery pack (supplied)
AAA x2 (not supplied)
Internal Power Supply Transmitter: Supplied AC adapter (12V,200mA)
Output Power 5mW + 5mW
Power Requirements Rechargeable nickel-metal hydride battery (supplied) or commercially available (size AAA) alkaline batteries
Cord Length 39.37" (1m) Stereo connecting cable
Dimensions Transmitter: 8.63x4.25x3.875" (219.20x107.95x98.43mm)
Weight Headphones: 10.59oz (300g) Including supplied battery Transmitter: 7.7oz (218.29g)
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