This fully waterproof e-collar is very popular with the dog trainers and pet owners. Its training systems will help you to control and train your dog in effective range by a series of functions, including vibration alert, sound warning, electrostatic punishment, etc. With its remote design, you can remote bark stopping, running about correction, easy calling back, biting and fighting. It will be your good training assistant. Main Features: - Fully waterproof design: the receiver has a super waterproof performance, so your pet can swim or walk in the rain with it - Adjustable levels: levels of vibration and shock are adjustable from 1 to 99, and you are advised to try levels gradually to find the proper one when using this pet training system for the first time - 3 training modes: shock / vibration / sound - With blue backlight screen: can be used at night - Long-distance remote control: the remote distance is 800m (without any disturbance) - 3 channels: there are 3 signal channels on the remote transmitter, and it can control 3 receivers of the same model - Auto power save: automatic standby mode and memory functions - Adjustable collar size: the max adjustable length is up to 67cm, suitable for all size dogs Package Contents: 1 x Transmitter, 1 x Receiver Collar, 1 x Test Light, 1 x Adjustable Collar Strap, 1 x Hang Rope, 1 x Charger Cable, 1 x Plug, 2 x Shock Electrode, 1 x English User Manual