The Charging Case with Micro USB Cable for Voyager Legend from Plantronics is a pocket-sized charging case that is perfect for storing, protecting, and recharging your headset. The internal battery of the case can recharge the Voyager Legend headset twice for up to 14 hours of additional talk time (up to 21 hours talk time total). LED indicators show the battery status of both the headset and the case at a glance. Case recharges from any micro USB charge cable.