The radio controlled Scare-Away Model R4. The R4 is easily programmed to fire from a single shot to as many as 32 Shots at the press of a button. The simple transmitter is capable of controlling an unlimited number of cannons. The fully portable and lightweight R4 is the solution for high-impact or hard-to-reach areas. Keep your battery charged with our 20 watt solar panel. The use of ear protection is recommended when operating the R4. It is designed to be fired in an open field and placed on a flat ground. For best safety practices, do not operate the R4 near dry vegetation or material. For best results, change locations and vary the rate of fire often.