JJC Wireless Remote Control for select Sony cameras, Replaces Sony RMT-P1BT remote commander. Compatiblity: for Sony A1 II, A7C II, A7C R, a1, a9, a9 II, a9 III, a7 IV, a7 III, a7m4, a7C, a7S III, a7R III, a7R IV, a7R V, ZV-E10, ZV-1, ZV-1 II, ZV-1F, ZV-E1, a6100, a6400, a6600, a6700, DSC-RX0 II, DSC-RX100 VII, FX3, FX30, a7R4A, a7R3A camera. Operating distance: approx. 10m / 32.8' in any direction, powered by a CR2032 battery (included). Multi-Function: 1) Shooting Still Image, 2)Recording Video, 3)Adjusting Camera Focus, 4)Zooming the camera & 5)Activating the camera's C1 or AF-ON function. "LOCK" All the Buttons Function: disable buttons on the remote control in order to prevent unintentional operations. Please note:here are some wrong operations cause not working. a)make sure ''LOCK Button'' ON OFF position. b)The mode button of remote must be on the corresponding setting according to your shooting. and your camera need to be keep the same setting. c)Make sure the firmware update camera.