*Powered by AAAbattery.*Learning code with receiver,Fixed code with transmitter,*Range:150-250m.*With ON/OFF switch safeguard.*Outpt power:6v.*With "Single,"All" and fixed time: Sequencer"and " Step"firing functions.*By using KFE2201C-60,it can control at least 60pieces of receivers independently.This makes the unit perfect for difficult shoot sites for smaller shows,special effects,family shows and wedding displays.