Designed specifically for the Panasonic Lumix S1, S1R, and S1H mirrorless cameras, the DMW-DCC16 DC Coupler replaces the internal battery and powers the camera using AC power allowing for longer, uninterrupted shooting sessions. This is especially useful when the camera's USB Type-C port is being used for data transfer and tethering purposes. The separately available DMW-AC10 AC Adapter is required for use with this DC coupler.