This remote shutter release can be used to operate the camera remotely by wireless control to reduce camera shake and increase the sharpness of the images. It has 16 unique channels to support multiple users' environment. Strong interference-resistance capacity, and exhausted power consumption design benefits a longer period of use. The frequency is 433 MHZ and receiver uses 2 AAA batteries.

Workable range(open space):100m
Auto focus, wireless bulb shutter,single and continuous shooting.

The transmitter could be a cable shutter also......