Overview LED light glows and flashes in darkness. Helps to keep you and your dog & other pets safe during walking. Provide safety for your dogs and pets while it's out alone at night. Easy to use: simply pushing the control button makes the light ON/FLASH/OFF, Collar has 4 modes controlled with a switch on the collar Solid Light, Fash Blink, Slow Blink, and Off.
Specification Size: S: width 2.5cm adjustment range 30-40cm M: width 2.5cm adjustment range 38-50cm L: width 2.5cm adjustment range 48-60cm XL: width 2.5cm adjustment range 55-62cm Use time: about 40 hours of battery use Charging models:charge for half an hour, use for about 2-3 hours