Kinesis technology with concealed sensor allows for a clean aesthetic and provides extraordinarily accurate and reliable actuation in varying installation environments;Below-counter valving reduces the faucet footprint and provides easier service;0.35 gpm (1.3 lpm) maximum flow rate with vandal-resistant aerator;AA battery-powered;up to four-year battery life (approx. 105,000 cycles);On-demand usage with 30-second max. continual run cycle to prevent vandalism and save water