LED Light Up Dog Collar
buy link-https://carteuro.com/led-light-up-dog...
Note
There are two versions of the led collar.
1.USB Charging Version
Charging once the light gets weaker will help to
improve the service life of the battery
2.Button Battery Version
Replace the button battery when power off
CR2032 Button battery x 2 pcs,
Please choose the version you want.