Logitech Wireless Headset H600. Cut loose from your PC with wireless audio for your calls and music. Just plug the tiny nano receiver into a USB port-and forget about it. Laser-tuned drivers minimise distortion, so you can enjoy clear calls and stereo sound, while a noise cancelling microphone reduces background noise. You're not chained to your desk-move up to 10 metres (33 feet) away from your computer. The six-hour rechargeable battery lets you listen and chat longer, while an adjustable headband and ear cups keep you comfortable.