Hmcity 330 Yards Remote 3 Dog Control Shock Training Collar Rechargeable and Waterproof with Beep, Static, Vibration, Light 330 yards remote control range for training 4 modes available for beep, static, vibration, light; 4 levels of intensity for function of static and vibration to adjust Multiple dog handling and training facility,allow you control up 3 receivers/dogs with one transmitter,when dog 1 shows on the transmitter that means dog 1 is under control,and the same for dogs2 & 3 Collar receiver was made of rechargeable and waterproof,collar belt fit for 45cm(Max) Transmitter displaied with LCD screen,easy operate