Feature:

1.Bark collar for small medium large dogs with 7 sensitivity levels.
2.3 training modes of beep,vibration, provides 64 kinds of training methods.
3.Protection function, two silicone sleeves can protect the dog's skin.
4.IP67 waterproof bark collar which can be used indoors and outdoors.
5.Bark collar rechargeable, charged in only 30 minutes and works about 12 days.