NightHowl, disco color mode, 9.5" to 14.8", mini safety dog necklace. The rechargeable NiteHowl mini provides a full 360 of light around pint-size pups with the push of a button on the weather-resistant housing. Featuring disc-o Select technology, you can illuminate your little one with color-changing disc-o mode for a beautiful color blend, or choose from three selectable colors of red, green, or blue. The NiteHowl mini quickly recharges via micro USB (not included) in just an hour, ensuring your petite pup can keep shining night after night. For a perfect custom fit, simply cut the flexible polymer to size and slip around your dog's neck as an eye-catching addition to their collar.