This is a wireless firing system for fireworks and pyrotechnics, ideal for battlefield simulations and firework displays. This system works perfectly with our range of maroons; pick from Mk3 maroon, Mk5 maroon, Mk7 maroon, Mk9 maroon or Mk15 maroon. The 2 Channel system includes: 2 x Receivers. 1 x 4 Button transmitter. Any receiver or set of receivers can be programmed to fire from any button on the transmitter.