Long working time until 70 hours
Easy use, water touch switch. That is, it turn on when it touch water, and turn off when leave water. It can save the energy fiently.
It can work under water 300 meter/985 ft.
Bright Flashing LED
LED Flashes alternately Both ends
Multi colored shell and lighting options
Product size: (Dia.)11.5 x (L)54.5mm
Built in LR41 button battery