The store is for you! If you are not satisfied with the product, please contact me first and do not leave negative feedback lightly. Thank you, have a nice day Notice: This fully waterproof electronic collar is popular with dog trainers and pet owners. The training systems will help you control and train your dog within effective range with a number of features including vibration alert, audible warning, electrostatic punishment, and more. Key Features: Fully Waterproof Design: The receiver has super waterproof performance, so your pet can swim with it or walk in the rain with it Adjustable values : Vibration and shock values can be adjusted from 1 to 99. If this is your first time using this pet training system, try the step-by-step values to find the right one 3 training modes: Shock / Vibration / Sound / Lighting With blue backlight screen: Can be used at night Remote control: Remote control is 800m (without interference ) 3 channels: The remote transmitter has 3 signal