This fully waterproof electronic collar is popular with dog trainers and pet owners. Its training system helps you control and train your dog with a series of functions such as vibration alarm, sound warning, electrostatic punishment, etc. With its remote design, you can remotely call a stop, run and call back easily. and fight. It will be your good training assistant. Main Feature: Fully Waterproof Design: The receiver has super waterproof performance, so your pet can swim or walk in the rain. Adjustable level: The vibration and vibration level is adjustable from 1 to 99. We recommend that you gradually try to find a suitable level when using this pet training system for the first time. times. 3 training modes: shock/vibration/sound. With blue backlit display: can be used at night. Remote control: 800 distance meters (without any interference). 3 channels: There are 3 signal channels on the remote transmitter, which can control 3 receivers of the same model. Power saving automatic: