Sony MDR-RF985RK User manual

Untangle your mind and relax with crisp, personal audio without wires. They also
feature a comfortable headband and long battery life up to 25 hours.
Specications
900 MHz Analog RF wireless headphone
Bullets
• Wireless FM headphones for cord-free listening
• 40 mm driver units for expressive sound
• Easy-adjust headband for long term comfort
• Noise reduction system for minimal transmission noise
• Automatic tuning for optimum signal reception
• Up to 45 meter (150 feet) reception range1
• Approximate 25 hour battery life1
• Fast recharge: approximately 3.5 hours = full charge1
• Volume control on headphones
• Easy connection of TV, Hi-Fi, and other components
Audio
Audio Modes Mute: Operates when RF signal is weak or not received
Channel Selection Select by a slide switch
Driver Unit 40 mm
Eective 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)
Features
Cordless Headphones
Enjoy high-delity 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 )¹
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.
MDR-RF985RK

1. Actual battery life will vary based on product settings, usage patterns, battery and environmental conditions.
©2008 Sony Electronics Inc.
Sony is a trademark of Sony. All other trademarks are property of their respective owners.
Features and specications are subject to change without notice. Non-metric weights and measures are approximate and may vary. Updated: December 13, 2012
Tuning Manual tuning via switch on both base and
headphones
Volume Control Yes (Rotary)
General
Design Over-the-head, Home-music/movie/games
Diaphragm PET
Headband Wide, Easy-Adjust
Magnet Ferrite
Power On/O Power turns ON when headphones are worn; Red LED
illuminates
Type of Use Home
Hardware
Communication Wireless Analog 900 mHz Radio Frequency
Headphone Type Closed, Dynamic
Inputs and Outputs
Audio In Analog Phono Input (le/right), Analog Stereo Input mini
jack (x1)
Power
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)