Behind The Mirror Faucet, BTM B from Stern. Black Battery Box for 6 x 1.5V batteries
Touch-free wall-mounted electronic faucet for concealed integration behind the mirror. Activated by infrared sensor. Powered by 9V transformer or 6 x 1.5V batteries (batteries not included). For cold or premixed water. Adjustable settings by remote control: sensor range, security time, delay in, delay out, on-off and reset to factory settings.