JJC 1m Remote Control for Sony A9 A7 II A7 Mark IV III A7R III A7S II as RM-VPR1
The working distance of SR-F2 is up to 1m / 3.28'. It allows you to record movie / still images without vibrations. With locking function, JJC-SR-F2 is ideal for Bulb long exposure and successive shots.