These systems have a range of around 200m depending on the terrain.
The transmitters operate on a single 12v battery (available from here too)
The receivers use 4xAA batteries.
ANY number of receivers can be programmed to each button of a transmitter, meaning unlimited separate ignitions can be done in as many selected groups as is needed
INSTRUCTIONS FOR USING AND PROGRAMMING THESE SYSTEMS ARE DOWNLOADABLE ON THE SITE BY ADDING THEM TO YOUR CART WHEN ORDERING ANYTHING.