brand new and high quality Feature: 1.Remote control RC-6 can be released from the front of the camera shutter remote camera operation, operating radius of approximately 10 meters. 2.In addition to the shutter button on the remote control, but also increase the "release the shutter" and "2 seconds timer to release the shutter" switch immediately, to achieve the rapid switching shutter release mode. 3.RC-6 Uses a remote control model for "CR2025" button batteries, each battery full power to be able to about 6000 times the signal transmission with the camera. 4.In the gathering of friends took a group photo, in order to avoid the scenery photography scene such as jitter generated, can for play a great role. Instructions: 1.Before use, should unplug battery compartments in the transparent plastic insulation. 2.The machine itself asked for remote control mode. 3.Will the remote control remote control receiving window of the camera, a button from the front of the camera, it can control the camera auto-focus. 4.Remote control is the best Angle of lens positive + right measure 30 degrees, and is the same as the original remote control, can'for t guarantee other angles. 5.Effective distance: as far as 10 meters (not cut off). If unable to for focus, remote control cannot have the result. Specification: Main Material: plastic Color:Black. Battery Model:CR2025. remote control RC-6 corresponding SLR products : 5D Mark III/5D Mark II/ 7D/ 60D/ 600D/ 550D/ 500D/ 450D/ 400D Size :64mm x 35mm x 6mm( 2.5 X 1.4 X 0.2in) Quantity:1pc