1. Features: - Compatible with Sony DSLR A900 A850 A700 A560 A550 A450 A350 A300 A200 A100 A77 A65 A57 A55 A35 A33; Coyne Minolta: DIMAGE A2 A1 9 7HI 7I 7 5 4 3 DYNAX7D 5D. - Effective operation distance: 180cm. - Wired/Wireless connecting: wired. - Cable length: 180cm. - Battery: AAA not included. - Remote control battery number: 2. - 1.2" LCD screen. 2. Function: - W-830/S1 can single shot burst shooting bulb delay shooting and selfie. - Delay shooting can set the number of pictures delay time is from 1s~59s shooting pictures is 1~99 pcs. - Selfie can set time from 0s~99H 59Min 59s pictures number: 1~99pcs or unlimited. - Uses different timer connecting cable can control different brands and types of cameras. - Easy to operate and convenient to use.