The battery handle can increase the operating time when connected to osmo pocket 3 and also supports connection to external audio devices. The battery handle has a built-in 950mah battery. Which can increase the operating time by approximately 62% when connected to osmo pocket 3. It supports hot swapping and comes with a usb-c port on the back that can be used to connect external audio devices. Such as digital wired headphones. Wired microphones. Or wireless microphone receivers. The 1 4 thread at the bottom can connect accessories like tripods. Delivering an enhanced user experience.