The ML-L5 Remote Control is used to take still pictures and to start and end movie recording with the COOLPIX S1100pj camera. In projector mode, the remote control can be used to change the projected still pictures and to play back movies. CR2025 Li-Battery - Nikon 1 Year Warranty Compatibility: Nikon CoolPix S1100PJ Free ground shipping on all repairs Fully transferable with gifts. Cancel anytime, full refund in the first 30 days | Nikon | | ML-L5 Remote Control for Coolpix S1100pj Camera | Black | Best Buy