Onebigoutlet 500 Yards Remote Pet Dog Collar Training E-Collar with/Vibration/Shock Electric Set The collar is easily adjusted to fit different breeds of dogs. Both water resistant and durable, the collar can be indoors and outdoors Easy to Use: Convenience of operation, easy-to-read LCD screen shows the stimulation . Backlight LCD screen for easy low light condition viewing Long Distance Control: Operational Range is up to 500 Yards! Durable & Adjustable Dog Shock Collar Strap - Fits all dogs with an adjustable Nylon collar size from 8 to 20 inches long Rechargeable and Power Saving: Built-in high capacity rechargeable batteries