Thanks for visiting! Perfect shutter release for SONY A100 A200 A300 A350 A700. With the wireless shutter release, you can control the shutter of your camera from as far as 100m away. The package comes with a transmitter, a receiver and a battery. This Remote Shutter Release allows you to release the shutter when you want to avoid camera vibration or to shoot from a distance. Enabling halfway or complete pressing, immediate shutter release and shutter lock for long exposures. Pre-set time (up to 99 hours 59 minutes 59 seconds) for a long time exposure (B Gate) operation. So what are you still waiting for?