1)It can trigger the camera shutter release remotely from a distance. The compatible camera has a built-in infrared receiver for this remote trigger device.
2)It has been proved to be safe and reliable with the multi-brand cameras (see more details in the picture above), and works with all camera remote control modes (Quick-response, Delayed and Bulb).
3)Works from up to 6-12 meters away.
4)Lithium CR2025 battery (included)
5)Suitable for
Sony a33/a55/NEX5/a230/a290/a330/a390/a450/a500/a550/a560/a580/a700/a900
6)Size:86x40x5mm