This upgraded pet collar light features 8 color including green, blue, pink, red, tangerines, purpler, yellow, and unique rainbow color. Easily change with simple press to make your pet stand out at night. 4 lighting modes: constantly glowing, fast flashing , slow flashing , and color alternation. Perfect for nighttime walks or outdoor activities, ensuring optimal visibility in any situation. USB rechargeable pet dog collar light with built in 150mAh battery, eliminating the need for button cells. Quick charging via any USB port provides extended usage while being cost effective. Made with waterproof ABS casing and precisely sealed components, designed for tough outdoor conditions. Waterproof rating ensures protect against rain, mud, and wet grass. Package includes: 1Piece LED waterproof pendant, 1 x USB dedicated charging cable