Model: TC-252 N3 - Model: single continuous bulb delay shooting modes; and also timer planning shooting mode - Delay shooting can be set the time and number of shoot; delay time is 1s to 59s; number of shoot is 1 to 99 pictures - Timer planning mode can be set the time between 0S to 99H59M59S - It can be used as normal shutter release when this product without battery - 1.3 LCD display to showing function it's easy to understand and operate - Compatible with Canon 7D / 5D / 1D series 50D / 40D / 30D / 20D / 10D - Powered by 2 x AAA batteries (included) - Comes with connection cable (150cm-full length) - English user manual included