Plantronics Savi W740 Mono Wireless Headset with HL10 Remote Handset Lifter Lightest DECT wireless headset on the market Choice of three comfortable, customizable wearing styles Hot swappable battery for unlimited talk time (Additional battery sold separately) Elegant magnetic headset docking 3-way connectivity lets you easily switch and mix audio between desk phone, PC and mobile phones Call answer/end, vol+/-, mute and flash Battery meter conveniently displays headset battery life remaining in PC icon tray