There are two versions of LED collars.
1.USB charging version
Once the light gets weak, charging will help
Improve battery life
2. Button battery version
Replace button battery when power is off
CR2032 button battery x 2
Please choose the version you want according to your needs. (The collar with battery or the collar with USB charging)

Battery: 2 pieces of CR2032 button batteries, the product is shipped with batteries, drive for about 30-40 hours, normal use for 2-3 months; the batteries can be replaced by themselves, and are available in convenience stores, shopping malls, electronic stores, watch markets, etc. You can contact customer service to buy
Charging model: charge for half an hour and use it for about 2-3 hours. There is a USB charging cable

Product advantages: