Safstar LCD Display Pet Dog Discipline Training Collar Vibrate 100 Level Shock Remote Waterproof Rechargeable 4 training modes: Static shock / vibration / beep / light, Remote LCD Display, Can be used for 1 or 2 receivers, A tone button activates a tone on the Collar Receiver 300 meters (328 Yard almost) effective range within control, Rechargeable and easy to use, ergonomic transmitter Power Saving: The collar receiver will turn off if it is unused for 4 min, Featured power saving design with automatic standby and memory function Rheostat dial that allows for gradual increases in stimulation intensity with no jumps between 0-100 levels (be altered by up and down button) The transmitter will go into standby mode if there is no operation after 20 seconds and turn off after 2 min, Waterproof for bad weather training and keep the collar against wet inside