Glo-Toob LED 3-Mode Pet Collar - Blue #1 Lightweight, Bite-Proof and Virtually Indestructible Pet Light! Completely Waterproof to 200 feet (60 meters) 3 Light Modes, 100% Power, 25% Power, Flash Powered by One AAA Battery (included) Bright, Omni-Directional Light Output Available in White, Blue, Red, and Green Simply Clip to Collar!