JJC RF-SWF2 kit for triggering the shutter in Sony cameras (replacement for RM-SPR1). It allows you to remotely release the camera's shutter at a distance of up to 50m in five modes: single photo, photo with a 5-second delay, 3 photos in a series, unlimited series, one photo in BULB mode. The set consists of a remote control and a receiver that can be attached to the camera using a cold shoe mount. The receiver can also be used as a wired trigger with a two-level button. 16 transmission channels between transmitter and receiver.