The Thomson WHP3001BK Wireless Headphones: For avoiding the trap falls of traditional wired headphones One of the main constrictions of using headphones can be the wire; with most cables only 1-2m in length you are forced to stay within this close proximity to the source of what you are listening to.Wireless technology offers the ideal solution, and the Thomson WHP3001BK Wireless Headphones have been specifically designed to provide maximum convenience, comfort, and style without any deterioration in sound quality, all in a sleek and compact package. Transmitted via radio signal from the charging station to the headphones, sound can be transmitted at a frequency of 863MHz to a distance of 100m in open space or 20-30m in buildings, meaning you can move between rooms and still listen clearly. There is no need to worry about interference with 3 different transmission channels and integrated auto-tuning (automatic station search) to eliminate any loss of sound or fuzziness as you move around or at distance from the charging station as long as you remain within the maximum range.Powered by 2 x AAA batteries included in the delivery package, the headphones can be switched on and off via their own power button with LED indicator and rest on the charging station when not in use to recharge, a process which can be monitored easily by the integrated charging function/battery charge indicator. When required the Thomson WHP3001BK can then be removed, and provides up to 8 hours of continuous use. Maximum comfort is ensured thanks to the elastic headband and generously padded ear cushions, in addition to integrated volume control on the headphones so you can easily adjust the sound to suit your individual preference. The ideal solution for listening to music or watching TV in the home!