Rechargeable Pool Lights: our pool lights have a built-in rechargeable battery, you can use the USB cable to charge them for 1-1.5 hours and they will light up for 12-18 hours when fully charged. The battery can be charged and used more than 300 times, saving time and money on battery replacement (Please charge the pool lights first after receiving the package). Beautiful Floating Pool Lights: the LED ball lights with 16 colors, 4 color changing modes, 4 brightness adjustments, and timer settings, the lights are bright and dimmable, you can set them to flash, fade, change all one color or individual colors. they come with a timer feature for 6 hours so you do not drain the battery by forgetting to turn them off. Perfect Decoration: our waterproof glowing pool lights light up your hot tub, above ground pools, swimming pools, ponds, party tables, stairs, pathways, and more. they come with a hook that makes them easy to hang on trees, a nice decoration for Christmas, Halloween, weddings, festivals, patios, gardens, backyards, and camping. They can also be a soft night light for your kids bedroom or bath time. What You Will Get: 1 x LED Ball Light, 1 x USB Charging Cable, 1 x Remote Control (Battery Included), 1 x User Manual. Easy to Use: press the button on the bottom of the floating pool lights to turn them on, then press them to change the color. Or press the power button of the remote control after turning on the lights. The remote is powered by 1 x CR2032 button cell battery (included), the remote control range is up to 164 feet/50 meters in the air and 16.4 feet/5 meters underwater. If the remote control signal is affected by the environment, the remote control distance is less than 66ft/20m.