The Plantronics CS540 Cordless Headset is super lightweight and comes with both a headband and an ear hook, so you can wear it how YOU want and with the handset lifter you'll have the freedom to answer calls wherever you are. Weighing just 22g and with two comfortable wearing options, it's no surprise the CS540 is a best-seller. If you need a headset that feels stable, wear it over your head; if you need a headset that is discreet, wear it over your ear - and you'll hardly feel it's there. With just one button you can control the volume levels or activate mute and its noise-cancelling microphone means that the person you are talking to will only hear what's important - you. The Plantronics HL10 handset lifter is a mechanical device that lifts the receiver when a call comes in, so you can take calls directly from your headset while away from your desk. You'll hear a short beep when a call comes in, and you can answer by simply pressing a button on the headset. This handy device is quick and easy to install. Before purchasing this product