It can trigger the camera shutter release remotely from a distance. Eliminates vibrations caused by physically pressing the shutter release. The compatible Sony camera has a built-in infrared receiver for this remote. The IR wireless remote offers an immediate release mode and two second delay mode. Suitable For Sony A7III A7II A7 A7R A7S A9 A6500 A6300 A6000 A55 A65 A77 A99 A900 A700 A580 A560 A550 A500 A450 A390 NEX-7 NEX-6 NEX-5T NEX-5R etc. Specification: Operating Range: Approx. 1cm-20m Dimension: 86x40x6.5mm / 3.15x1.57x0.25inch For SONY Camera with infrared remote control function How to use: 1. Press the "S" button, your camera will focus and take picture. 2. Press the "2S" button, your camera will wait for 2 second and then. Note: Camera is not included CR2025 model battery Not included