... induction switch,it works only when it's in water Speedboat with Remote Control Description:(1) all-round wireless remote control can ... waterproof effect is very good(6) unique water induction switch,thel boat will be work only when it is ... 4 hoursProduct accessories:a remote control ,a antenna ,a power charger,a set of rechargeable battery,a manual , two spare OARS ,a new packaging gift boxPacking ...