- Media: Electronics
- Item Quantity: 1
Sony MDR-RF985 Wireless Stereo Headphone System
- Wireless 9Mhz FM headphones for cord-free listening
- 4mm 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
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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. 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. General information manufacturer Sony corporation: general information manufacturer part number mdrrf985rk: general information manufacturer website address Sony: general information brand name Sony: general information product model mdr-RF985rk: general information product name wireless stereo headphone system: general information product type headphone: miscellaneous package contents wireless stereo headphone system Rechargeable Lithium-Ion rechargeable battery: limited 1 year: technical information connectivity technology wireless: technical information wireless technology rf: technical information wireless operating distance 150 ft.: technical information sound mode stereo: technical information minimum frequency response 10 Hz: technical information maximum frequency response 22 kHz: technical information connector plating nickel plated: technical information features tangle-free cable, corrosion resistant: battery information Rechargeable Lithium-Ion rechargeable battery: battery information maximum battery run time 25 hour: earpiece design over-the-head: earpiece type binaural: earpiece controls power switch: earpiece driver type ferrite: earpiece driver size 1.57": earpiece sensitivity 100 db.: interfaces/ports host interface mini-phone: physical characteristics color black: physical characteristics form factor ear-cup: physical characteristics weight (approximate) 10.59 ounce:
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Top Customer Reviews
The first Sennheiser used an analog RF link that provided good audio, but the adjustment to get the receiver to lock to the transmitter was touchy, and the range of the set was considerably less than advertised. Also, while it was happy using AAA rechargeable batteries, there was no provision for charging them without removing them from the headset. This necessitated keeping a supply of charged batteries on-hand. Nuisance.
The second Sennheiser was a much more expensive set that used a digital RF link. The sound was of excellent quality, and the headset's rechargeable batteries were kept charged as long as I remembered to put the headset onto its charging cradle now and then. However, the headset controls were positioned very badly. For example, leaning back into a cushion or moving my head while using them often resulted in them resetting themselves, usually with a big audio level increase. This was a constant nuisance. Also, there was no visual indication that the headset was On or Off, thus resulting in dead batteries from time to time. Far more serious was that the material used to pad the crossover band on the headset was a foam plastic with a shiny plastic film fused to it. Looked good, but after a fairly short time, the shiny stuff started to flake off. I wrapped the entire crossover piece with electrical tape. Didn't look good at all, but it stopped the black dandruff I was plagued with for awhile. But then some months later, the same thing started to happen with the foam cushions on the headphones themselves. This stuff got everywhere, so I finally junked the headset.Read more ›
Great product, very satisfied.
Can be used for three days before recharging.
Most recent customer reviews
Works well, a bit of static occasionally but if you reconnect it goes away. Comfortable to wear, good sound. Nice set of headphones.Published 5 days ago by DS
Theese are better than previous versions in some aspects, f.e. resting spot is now much better and easy to use. Distance is huge but a bit less than in some prev. versions. Read morePublished 17 days ago by Makanaki
So far these headphones are great. i use them at night while watching tv in bed so i dont wake up my spouse. They were easy to hook up. Work great. Read morePublished 18 days ago by Extreme Critic