Three different starting tones: gun fire, beep, and whistle Brighter strobe light with additional bulb flashes with starting sound Can simultaneously start Ultra L10 Multi-Lane Timer Compatible with Finish Lynx with additional starting cable(sold separately)Portable amp(also available separately), can be used as microphone or loud speaker Amp produces sound up to 90dB to 15 feet with volume control Electronic starter is powered by 3 AA batteries(not included)Comes with carrying case, 1 year