1.Multiple ColorsYou can choose colors of led armbands from red, yellow, blue, green, orange, pink and white. We also have a set including each color. 2.Water & Sweat proofTPU coating on both sides of the LED bracelets makes them resistant to rain and sweat. Never worry about the electric leakage and short circuit due to moisture. 3.Replaceable Battery The wristbands LED can be used again after replacing a new battery. We also provide one another CR2032 button battery for each slap armband. The light can last 70-80 hours. 4.3 Lighting ModesJust press the button and enjoy 3 modes flashing: fast flash, slow flash & full glow. This glowing bracelet is the best glow party supply for parties as well as companion and guard for your outdoor activities at night. 5.Multi-UsagesThis LED slap band is nicely visible while walking, riding, running with it at night, which makes you more conspicuous and keep you safe at night time. It's also perfect to serve as dog collar for your pet when night walking. Kids always love these light up wristbands.