Sony MDR-RF985RK Headband Wireless Headphones
No annoying cables. Just stunning sound. Enjoy personal movie and music audio throughout your home with the Sony MDR-RF985RK Headband Wireless Headphones. The MDR-RF985RK features a wireless range of up to 150.92ft, powerful 1.57” drivers, automatic tuning, and comfortable, self-adjusting headband.
Moreover, a charging system is included. You’ll be able to listen for longer: a 3.5-hour charge gives you up to 25 hours of use.
Key Features at a Glance
Up to 25 hours of battery life
R.F. wireless for long-range connection
Wireless functionality up to 150.92 ft away
1.57” neodymium drivers deliver more expressive sound.
Wide, self-adjusting headband for enhanced comfort
Expressive Sound
The high-quality 1.57” neodymium drivers deliver deeper bass and great audio clarity for a superior home entertainment experience.
Wireless Freedom
Featuring built-in R.F. wireless technology, the headphones wirelessly stream your favorite tunes from up to 150.92 ft. away from any compatible devices.
Wired-equivalent Audio Quality
No wire doesn't mean compromised sound quality. Wireless radio-frequency transmission provides quality indoor transmission. Best of all, one simple setup is all it takes to achieve optimal RF signal reception and you're on your way to cordless freedom.
Long-term Comfort
The self-adjusting headband allows for long-term comfort and ease-of-use.
Fast Charging
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.
Sony MDR-RF985RK Wireless Radio Frequency Headphone System
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The Sony MDR-RF985RK Wireless Radio Frequency Headphone System is designed to transmit analog audio sources wirelessly to its headphones with a range of operation of up to 150-feet. The headphones feature a built-in rechargeable battery that can provide playback for up to 25-hours per charge. They are charged by connecting to the transmitter base station, and produce a full charge in 3.5 hours. The headphones also feature 40mm drivers and an adjustable headband designed to provide comfort for long listening sessions.
The system's transmitter features a stereo pair of RCA inputs and a single 1/8" stereo mini-jack input. It broadcasts on an analog 900 MHz radio frequency and has three selectable channels.
Type Closed, Dynamic
Drivers 1.5" (40 mm )
Magnet Ferrite
Diaphragm PET
Frequency Response 10 Hz to 22 kHz
Radio Frequency Wireless Analog 900 MHz
Transmitter Channel 1: 915.5 MHz (selective, FM Stereo)
Channel 2: 916.0 MHz (selective, FM Stereo)
Channel 3: 916.5 MHz (selective, FM Stereo)
Tuning Manual tuning via switch on both base and headphones
Volume Control Rotary
Modes Mute: Operates when RF signal is weak or not received
Inputs Transmitter:
2x Analog RCA Phono
1x 1/8" (3.5 mm) Stereo Mini-Jack
Battery Battery Type: Rechargeable Lithium-Ion
Battery Charging: 3.5 Hours (Approximate)
Battery Life: 25 Hours (Approximate)
Power Supply Transmitter: 12 V, 200 mA AC Adapter
Power Requirements DC 12 V
Output Power 5 mW + 5 mW
Cable Length 3.2' (1 m) (Approximate)
Dimensions Transmitter: 8.5 x 4.1 x 3.7" (21.6 x 10.5 x 9.6 cm) (Approximate)
Weight Headphones: 10.59 oz (300.00 g) (Approximate)
Transmitter: 7.7 oz (220 g) (Approximate)
Sony MDR-RF985RK Wireless Radio Frequency Headphone System
Transmitter Station
AC Adapter
1m Stereo Cable