... ·Use child siter alarm aside lake, in a boat, around a pool or pond to avoid anti-drowning!·No ... need installation, just simply strap a frog wristband on the child (or pet).·plug in ... alarm can be easily taken to another pool, to a boat, or to the cottage·The alarm volume ... not trigger the alarm. ·Child siter wristbands have a battery life of at least four years when use it every ...