Sony MDR-RF855RK

Closed, wireless headphones with rechargeable batteries, 40mm neodymium driver and charging dock Stream pure wireless sound for TV, movies and more<br/>
<br/>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.<br/>
Just dock to charge: When the power is running low just place the headphones in the dock to recharge the battery.<br/>
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.<br/>
Listen for even longer: Get longer battery life by using the auto power on/off function when you’re not listening.<br/>
Keep the music rocking: Enjoy 18 hours of listening with the included rechargeable battery or 28 hours using alkaline batteries from Sony (not supplied).<br/>
Listen in total comfort: A soft head pad and ear cushions give you the comfort you need for long listening.<br/>
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.<br/>