The Plantronics CS540 Headset means that you can Increase your productivity & multi-task more easily while you talk. It is the lightest DECT™ headset on the market & offers a wireless range of 120 metres so that you can work away from your desk while conversing. DECT™ technology eliminates Wi-Fi interference, while the DSP technology provides more natural sounding voice. The headset also offers a noise-cancelling microphone so you can both hear & be heard clearly, making it ideal for busy office environments. The narrowband audio option means that you can save battery power, while wideband with CAT-iq technology gives you clearer, more professional audio. Pair a headset to a base simply by docking it, & add up to three more users' headsets for conference calling. You can remove the phone headset from the base to pick up a call, & replace it to hang up for an auto-answer option. For added convenience, the headset comes with a free lifter to make answering your phone even easier. Add style & functionality to any workspace with this streamlined Plantronics headset, & improve your overall productivity with its reliable performance. Features Hands-free mobility to enable easier multitasking Wireless range of up to 120 metre Remotely answer & terminate calls when used with electronic hookswitch or handlifter Volume & mute audio controls at your fingertips Adaptive power system delivers longer talk & standby times