There are 2 versions of the LED collar.
1. USB charging version
Once the light gets weak, charging can help
Charging mode: charging for 30-60 minutes; it can be used continuously for about 2-3 hours. Has a USB charging cable
Improve battery life

2. Universal USB charging PVC round tube, so the size is the same! The maximum neck length is 50CM. Length can be cut freely
Please choose the version that best suits your needs. (USB webbing collar or USB charging PVC round tube collar)

USB charging version

The charging time is 30-60 minutes, and it can be fully charged and used continuously for about 3 hours.

Tips:Please purchase according to the measured neck size

XS: width 2.0cm, suitable for neck circumference 28-38cm/11 -15 inches, total length 41cm
S: width 2.5cm, suitable for neck circumference 34-41cm/14-16 inches, total length 44cm
M: width 2.5cm, suitable for neck circumference 37-46cm/15-18 inches, total length 50cm
L: width 2.5cm, suitable for neck circumference 41-52cm/16-20 inches, total length 56cm
XL: width 2.5cm, suitable for neck circumference 42-56cm/16-22 inches, total length 60cm
XXL: width 2.5cm, suitable for neck circumference 43-60cm/17-24 inches, total length 65cm（Suitable for larger dogs）

Three flash modes
First click_flash
Second click_slow flash
Third click_Long light
(You can change the mode through the on/off button)
Between different colors: yellow and orange have high brightness