This light is designed with waterproof, which is similar to the waterproof principle of the watch, and put waterproof ring in the middle of the ball lamp, so as to achieve a good waterproof effect.With multiple light color design, it is looks more attractive, and it can excellently decorate stage.Made of high quality PVC material, it is durable and waterproof.The maximum inflatable diameter of ball light is 40cm, and its remote control is within 5 meters.It is suitable for outdoor party decoration, swimming pool decoration, hotel room decoration.Item Name: Ball LightMaterial:PVCOperating Hours: about 20 HoursBatteries: 2 x CR2032 Battery (Included)Battery Capacity: 240mAhSize Details:Maximum Inflatable Diameter: 40cm/15.75" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.Package Includes:1 X Ball Light1 X Remote Control