Name: LED Dog Glowing Collar
Power: USB Rechargeable , 
            Or 2pcs CR2032 Button Batteries  , can be replace when the battery is out of power.
Width: About 2.5cm
Length: XS(28-40cm), S(35-43cm), M(40-48cm), L(45-52cm), XL(52-60cm)
Attention: Do not connect the leash directly.
Package Include:
1 X LED Pet Dog Glowing Collar
 
Feature:
1. Flashing Mode: Long light, Flash, Slow flash, Close( via switch control ).
2. Powered by USB rechargeable or 2pcs CR2032 button batteries.
3. Suitable for dark environment or walk the dog at night, outdoor and pet movement through the bright fiber optic light, it can be warning.
4. Indentification anti-lost, can be used both in day or night which you turn on and off a light to control them.