The wireless remote trigger could be immediately try to existing Canon G12. Commissioning took place without any problems using the supplied, well-illustrated instruction manual. Batteries are included. For details about the features you can learn only in English or Chinese; the device itself is but quasi self-explanatory: All functions necessary for me are present and can be used without any problems. The handling of the device is totally easy. Even as a wired remote release at slower shutter speeds can be used, the receiver unit of the unit. They do not even have to be switched on. The remote release extended in any case, the possibilities of the camera in harmony with the existing tripod. In addition, the price-quality ratio is perfectly fine; Therefore, I recommend the radio remote release for sale.