Thank you for viewing. SONY genuine wireless remote commander, Easily operate movie and still photography. ★Compatibility α (Alpha) series: A1, A7C, A7S III, A7R IV, A9 II, A7RV, A9, A7 III, A7R III, A6400, A6100, A6600, etc. Cyber-shot: RX1R III, ZV-1 II, ZV-E1, ZV-1F, ZV-1, ZV-E10, RX100VII, DSC-RX0 II, etc. Points to check for compatibility Firmware update: Especially A9, A7 III, A7R III, DSC-RX0 II, etc., require updating to the latest firmware to use with RMT-P1BT. - Model name: PMT-P1BT - Type: Wireless remote commander - Functions: Movie, still, zoom, focus button, custom C1 Lithium coin battery (CR2032) specification - Brand: SONY