This 2-pack light up dog collar features pure blue light with 9 built-in LED beads and 7 adjustable lighting modes such as steady on, fast flash and slow flash. The walking light for night walking is easy to use: simply press and hold the middle button for 3 seconds to turn on the dog light, and tap repeatedly to switch modes. These dog collar lights support convenient USB charging and offer up to 24 hours of long runtime. With IP68 waterproof rating and a lightweight design of only 50g per piece, the durable dog collar lights for night walking won’t burden your pets. Ideal for dog walking, hiking, running and various outdoor activities, these practical dog lights for night walking are also a wonderful gift choice for pet lovers.