You won't have to worry about disturbing others while you crank out your music with these impressive MDR-RF4000 headphones by Sony. These headphones include a 40 mm driver and provide crystal-clear treble and deep bass responses. The MDR RF4000 headphones an average operating range of 30 metres, and the good-sized ear cups make them comfortable to wear, even after long
hours of use.
about £30 cheaper than everywhere else
The rechargeable battery on the Sony MDRRF4000 runs for around 28 hours per charge and features a docking station.