Smallrig 3902 Wireless Shutter Remote Control SmallRig Wireless Remote Control 3902 for some sony/canon/nikon cameras is designed for wireless control of camera shutter and recording. It can easily trigger the shutter and record from a distance without causing any shake, thus improving the results of your shots. In STILL mode, press the button halfway to focus automatically, and press the button fully to take a photo; in MOVIE mode, press the button fully to turn on/off recording. The bottom of the product is equipped with a removable cold shoe clip that can be quickly installed on the cold shoe bracket or collar. After removing the clip, you can lock it on the side handle 3260, top handle 2165C and other accessories through the 1/4"-20 screws in the box. Its silicone bottom helps prevent deflection, and the screws are designed to prevent loss. Once paired, the camera can automatically connect to your device, saving time. Additionally, the Bluetooth connection is fast and reliable within a 10-meter radius.