Worried about your dog’s safety when it walks at night? Built in highly visible LED beads, our light up dog collar clears your dog’s vision at night. In addition, we also offer 9 ambient light colors, which not only help them notice potential dangers in the dark, but also create a sense of social atmosphere for your dog. Comes with 3 sizes(S/M/L) and adjustable to perfectly fit your dog’s neck, suitable for small, medium-sized and large dogs. IPX7 waterproof and USB rechargeable. Best gift ever for your furry friend!