The RC-6 Wireless Remote Controller is a miniature infrared shutter release transmitter handy for taking self-portraits or group photos pictures of subjects that are difficult to approach or to minimize vibration for close-ups and time exposure.The RC-6 is simple to use and remarkably small just about anywhere. The RC-6 has a maximum effective range of(5m) and operates on a single button-sized battery. - Operation distance: 5m - Compatible with Canon 600DEOS 5D Mark II/EOS 7D/EOS 550D/EOS 500D/EOS 450D/60D - Powered by 1 x CR2025 battery (included)