The Discovery 640 Bluetooth wireless headset from Plantronics delivers pioneering styling in a small, ultra light-weight design. The unique AAA battery charger boosts the maximum talk time of the headset from 5 hours to 15 hours, and maximum stand-by time from 60 to 180 hours. The Discovery 640 can also be charged from popular mobile phone chargers, removing the need to carry a dedicated headset charger. The LED status indicator provides information on battery charge level and missed calls, and for added convenience a vibrate-alert function alerts the user to incoming calls. The Discovery 640 incorporates Bluetooth V1.2 to minimise potential interference and utilises multipoint connectivity for maximum versatility.