Touch activated faucet featuring touch2o and hands-free technology Operates manually with the handle, with the tap touch2o functionality or by placing your hands within the 4 in. Sensing field around the faucet Battery operated (6 AA included) for up to 2 year battery life or 6 C (not included) for up to 5 year battery life Battery box can be mounted to cabinet with included mounting hardware Optional a/C adapter EP73954 may be ordered separately Metal