High Visibility Day and Night - combined the LED strip with the waterproof reflective material, this luminous LED bracelet is ideal for signaling yourself on the road during the day, more visible at dusk, at night or in rainy weatherRechargeable version - no more worrying about changing single-use batteries, this flashing bracelet is rechargeable anywhere thanks to its micro usb port, a mini usb cable is also provided How does it work? Simply press the button and the led bracelet will shine with a thousand lights, 3 visual effect modes to change (continuous, flash and flashing) allow you to experience extraordinary sensations Adjustable size - in length from 28 to 32 cm at the using an adjustment buckle and velcro closure, they fit perfectly on the wrist, biceps, calf or even the bun, anyone can wear it, child or adult For All Your Events - except cycling or running like jogging or walking the dog, this led bracelet will find its place on all possible and imaginable themes: discos, bars, party rooms, concerts, parties and festivals