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. Actual wireless range and battery life will vary with use, settings and environmental conditions.