Review on 📸 Wireless Remote Control Shutter Release - Camera Bluetooth Commander RMT-P1BT Replacement for Sony ZV-E10 ZV-1 A1 A7C A7RIV A7RIII A7SIII A7III A9 A9II A6600 A6400 A6100 RX100VII - Enhancing Video & Photography SEO by James Jenkins

Remote control connects to Sony A7C easily but cameras do not work all - NONE of the functions will work. Most Sony camera owners are aware of Sony's penchant for creating firmware that disables non-genuine batteries and accessories for their cameras in order to force owners to buy Sony batteries. (more expensive) batteries etc. It seems that they sometimes add extra code to the camera update software that changes their algorithms to a new version, locking 3rd party batteries and preventing them from working with their products. So again obviously a later A7C. Bodies are even less willing to work with third-party remotes; Still, my A7C (bought late May 2021) does not work with 2 different non-OEM remotes, although older models seem to work fine with them.