These systems are widely used for wireless actuation of movie and theatrical special effects devices. Private system codes are available at very low cost for prevention of actuation from other Holatron transmitters. Guaranteed line-of-sight range is 1/4 mile for micro-receivers, two miles for frequency-hopping spread-spectrum receivers, and ½ mile for all other receivers. Firing latency of less than 100 milliseconds assures you of easily and reliably actuating remote devices with precise synchronization. Sound-actuated transmitters are available for the ultimate real-time synchronization of remote effects with gunshots, explosions, crashes, etc.