The Saramonic WiTalk-BP is quick-change battery designed for the Saramonic WiTalk Wireless Intercom Headsets and the WiTalk-Hub Intercom Base Station. It features 1200mAh of power and can either be charged directly in the WiTalk Headsets and Hub via USB-C DC power or can be charged in the 10-Bay WiTalk-CB Battery Charger (sold separately). Quick-Change Power You Can Rely On The WiTalk-BP provides 1200mAh of power to your WiTalk components. A full charge gives you an incredible runtime of up to 18-hours on the DRH and SRH remote headsets, 5 to 10 hours on the DMH and SMH master headsets, and 2.5 to 5 hours for the Hub Base Station. The battery is easy to change, with a single button push to eject and can be charged in the headsets or Hub via USB-C power, even while in use.