Sony MDR-RF855RK

10 - 22000Hz, 40mm Neodymium Driver, 285g, Black + FM stereo Transmitter <b>No wires to tie you down</b>
- Say goodbye to knots and tangles, you get the freedom to move with wireless headphones and a transmission range of up to 100m

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

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

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

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

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

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