Features:Easy On/Off FunctionDisplays Five Different Light Shows In Your PoolChoose Your Favorite By Pressing The Button1/All Lights Flash Randomly2/All Lights Flash Together3/Individual Lights Flash Randomly4/All Lights On5/Randomly Cycle All ShowsHow to use:Press the button once to turn on， hold for 3 seconds to turn off5 Modes of Light Patterns:by pressing on/off key on the top of underwater light to shift the light patternEasy Battery Installation:Loosen the screw on the battery cover and insert 3 AAA batteries(not included)， replace the lip and tighten the screw before use.Note: Please do not soak this LED light in the water all the time， and it had better float on the water， don't put it on to the bottom.Package included:1 x light (Battery is not included.)