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.)
 

Compatible with:

EOS D30,
EOS D60,
EOS 10D,
EOS 20D,
EOS 30D,
EOS 40D,
EOS 50D,
EOS 5D,
EOS 7D,
EOS 5D mark II,
EOS 1D,EOS 1Ds,
EOS 1D MarkII,EOS 1Ds MarkII,
EOS 1D MarkIII,EOS 1Ds MarkIII
 

Package Contents:

1 * Digital Timer Remote
1 * Connect Plug
1 * User Manual