Timer delays, exposure times, and intervals can be set for up to 99 hours, 59 minutes, 59 seconds, in one-second increments. You can also choose anywhere from 1 to 99 continuous shots or you can set the ShutterBoss to take an unlimited number of photos. The receiver uses a CR2 lithium battery, and the transmitter uses 2x AAA batteries, which can last up to 4 years on standby.
Canon: EOS 10D, 20D, 30D, 40D, 50D, 5D, 5D Mark II, 5D Mark III, 6D, 7D, 1D, 1D Mark II, 1D Mark II N, 1D Mark III, 1D Mark IV, 1Ds, 1Ds Mark II, 1Ds Mark III, 1D X and 1D C
Panasonic: DMC-FZ100, DMC-FZ150, DMC-FZ200, DMC-G1, DMC-G10, DMC-G2, DMC-G3, DMC-G5, DMC-G6, DMC-GF1, DMC-GF6, DMC-GH1, DMC-GH2, DMC-GH3, DMC-GH4, DMC-GX1, DMC-GX7, DMC-L1 and DMC-L10