Discovery 655/Discover 665 Headset The Discovery 665 is the same as Discovery 655, but the Discovery 655 contains fewer accessories. The Plantronics Discovery 665 is the ultimate Bluetooth headset for busy professionals - with a number of features specifically designed for in-car convenience.
AudioIQ - intelligent sound optimiser, exclusive to Plantronics
Digital Signal Processing
Simple to use volume, call answer and call end controls
LED indicates incoming calls, missed calls and low battery
Up to 3.5 hours talktime, and up to 80 hours on standby