Timer function to free you from tedious operation.
Easy to read backlit LCD display.
Shutter Release Timer Remote Control could use as a normal shutter control when without battery. But the timing function can NOT work when without the battery in it(Batteries NOT include).
Power source: Two AAA-type batteries (2XAAA Batteries not included)
Length of cord: 120 cm (3.9 ft. approx.)
EOS 5D mark II,
EOS 1D,EOS 1Ds,
EOS 1D MarkII,EOS 1Ds MarkII,
EOS 1D MarkIII,EOS 1Ds MarkIII
1 * Digital Timer Remote
1 * Connect Plug
1 * User Manual