High and soft quality - very comfortable for your Huastier ; Made of standard silicone + ABS materials, super comfortable to wear and super safe. At the same time also waterproof, so you can be carefree in any weather. Three adjustable flashes possible: fast flashing, slow flashing and constant light, it can be set according to your wish and different situations. Super bright, visible up to approx. 500 m Up to approx. 5 hours with flashing / approx. 2 hours with continuous lighting; Full charge time: about 45 minutes to 1 hour. Adjustable length - great for dogs and cats of all sizes: original length is 27.56inch (70cm), you can use scissors to cut it to fit your pet’s neck USB Charging - Very Simple and Convenient: No battery required, it can be charged with cellphone / smartphone / tablet and computer. - Easy adjustable length: original length is 27.56inch (70cm), you can cut it to any length you want - High quality: made of standard silicone + ABS materials, soft and safe