SUPER BRIGHTNESS AND SAFETY: which are visible up to 500m in dark place, which can prevent the potential accident, protect and save your dog’s life. USB RECHARGEABLE: The rechargeable LED collars no need to replace the battery, USB cable included, energy-saving and eco-friendly, which is a common Micro connector, you can charge with the cable of any device yourself it is missing, full charge is about 2 hours, about 4-6 hours for steady glow, 6-8 hours for fast flash, 8-10 hours for slow flash. DURABLE WEATHER: The light up dog collars are not waterproof, it’s no problem for small rain or daily sweat, however, you can’t put the light up dog collar in water because it will damage the charging part. Lightweight: The neon dog collar is made of tightly woven nylon straps, soft touch which makes your pet more comfortable, also suitable for your puppies, bright color, blue, green, pink. HIGH QUALITY PARTS: A durable reflective dog collar light with a rustproof D-ring to attach the dog leash