Improve safety and visibility on your next nighttime walk with the USB Light-Up Neck Ring! This bright, waterproof neck ring provides 360-degree illumination for maximum visibility. Simply snap the ends together to wear alongside your dog's favorite collar. Customize the fit by cutting the material to your dog's size. Effortlessly switch between 3 eye-catching light settings with the ring's simple power button. Use the ring up to 5 hours with the flashing setting or 3 hours on the continuous light setting before recharging with the included USB charger. Charging takes approximately 40 minutes.