Nite Ize Green NiteHowl Rechargeable LED Safety Necklace. It is made with flexible polymer and illuminated by LEDs, NiteHowl provides a full-circle glow for night walks and backyard hangs. For a perfect customizable fit, simply cut NiteHowl to size and slip it over their neck for a bright addition to their collar. The safety necklace comes to life with a simple push of the button on the durable, weather-resistant housing, offering 360 illumination so you can view your furry friend from all angles. Set NiteHowl to glow or flash mode for added visibility and recharge it in just 1.5 hours via USB-C cable (not included). NiteHowl runs up to 5 hours to keep your pup seen, safe, and shining every night.