Sony MDR-RF855RK

No wires to tie you down
- Say goodbye to knots and tangles, you get the freedom to move with wireless headphones and a transmission range of up to 100m

Just dock to charge
- When the power is running low just place the headphones in the dock to recharge the battery

Step up to powerful bass
- Give movies, TV dramas or big sports matches real atmosphere with deep, resonant bass from a powerful 40mm neodymium driver unit

Listen for even longer
- Get longer battery life by using the auto power on/off function when you’re not listening

Keep the music rocking
- Enjoy 18 hours of listening with the included rechargeable battery or 28 hours using alkaline batteries from Sony (not supplied)

Listen in total comfort
- A soft head pad and ear cushions give you the comfort you need for long listening

Control volume on the headphones
- No need to get up or move from the sofa, simply adjust audio levels using the volume control on the headphones

Sony MDR-RF855RK. Product type: Headphones, Wearing style: Head-band, Recommended usage: Music. Connectivity technology: Wireless, Wireless range: 100 m. Ear coupling: Circumaural, Headphone frequency: 10 - 22000 Hz, Magnet type: Neodymium. Battery technology: Nickel-Metal Hydride (NiMH), Battery life (max): 18 h, Battery recharge time: 7 h. Weight: 285 g

Performance
Product type	Headphones
Wearing style	Head-band
Recommended usage	Music
Product colour	Black
Ports & interfaces
Connectivity technology	Wireless
RF connectivity	Y
Wireless range	100 m
Headphones
Ear coupling	Circumaural
Headphone frequency	10 - 22000 Hz
Magnet type	Neodymium
Driver unit	4 cm
Total Harmonic Distortion (THD)	2%
Microphone
Microphone type	Not available
Battery
Battery technology	Nickel-Metal Hydride (NiMH)
Battery life (max)	18 h
Rechargeable battery	Y
Battery recharge time	7 h
Weight & dimensions
Weight	285 g
Other features
Transmitter weight	300 g