?? ?Easy to Use?Clip-On Design make it easy to wear, hung on the small hoop of the collar, or stuck directly around the collar as necklaces pendants, even as key chain. CR2032 button batteries can last for 80-120 hours, easy to replace. (Batteries included). ?? ?Widely Used?The Safety Lights are bright enough to read, can used in different situations, such as pet collars, straps, belts, bicycles, and even on clothes, also applied for emergency short-time light source during cycling, camping walks or travel and hiking in night, ensuring the safety of you and your pets. ?? ?Waterproof and Durable?The case made of soft silicone with good elasticity, splash-proof, friction and drop resistant, light and compact, pets friendly, will not burden your pet, can directly contact with pets. ?? ?3 Lighting Modes?The LED Dog Lights have built-in 3 led light beads with visible distance between 200 up to 300 meters. With 3 Lighting Modes: steady lighting, fast flash, slow flash, to improve the visibility of the dog, can be adjusted by buttons. ?? ?5 Pieces in 5 Different colors?The Dog Collar Lights in red, blue, green, orange, yellow. Vibrant colors ensuring your dogs or pets easy to tack and recognizable in the dark, so as to keep the dog safe.