There are 5 different sequences which you can change between by pressing the button on the side;Each style is made up of different combinations of red， green and blue light-each with different patterns and displays， some flashing and some still;The dome shape means that the light reaches out expansively to illuminate the pool or room;A balancing cap is included so you can float it in your bath;A great way to brighten up you bathtub or jazz up your swimming pool.Specification:Material: PP;Battery: 3 x AAA battery (not included)Product size: 8 x 8 x 8 cmInstruction��o1. Screw out the three screws， and take out the cover;2. Put three AAA battery into the battery case， make sure the battery's anode and cathode are correct;3. Put on the switch to check if it will work， if it works then long-pressing on the switch and it will turn off;4. Tightening the screws back if not the water will ruin the battery， then will be damaged.Package including:1X Pool Light