Nozzle tower with remote control water start. Turn your simulator on and off with the click of a button. Kit allows you to stop the demonstration without drips and drizzles. Rechargeable battery can be plugged into your vehicle or 110v power outlet. Kit includes rechargeable battery, solenoid water control valve, remote receiver with 2 remote buttons. Includes backup extension cord with a manual switch just in case you forget to charge your battery, connect directly to a 12 volt battery or vehicle 12 v power outlet.