The DMT LED Nylon flashing pet collar is conveniently used to walk your dog at night. With a bright LED light, thereâs no way youâll lose your way while on a walk with your dog. It has 3 LED operating mode: Solid LED, Rapid Flashing and Slow Flashing. Each 30-minute charge equals up to 5 hours of use! This LED collar is weatherproof and USB rechargeable so that you donât have to repeatedly replace batteries. Size: M:2.5 x 40-48cm / L:2.5 x 45-52cm / XL: 2.5 x 52-60cm Colour: Pink Camouflage, Green Camouflage, Blue Camouflage, Yellow Camouflage. Power: USB Rechargeable Recharge Time: 30 minutes Duration: Up to 5 hours (on full charge)