... Dy Model 888F: 2-way LED transmitters + super long distance car alarm system Main features: 1) Dynamic colorful LED transmitter 2 ... , high stability and long distance 5) Sound, vibration, flashing LED indicate the vehicle status 6) Anti-hijacking, emergency call and ... , high stability and long distance 5) Sound, vibration, flashing icons indicate the vehicle status 6) Anti-hijacking, emergency call and ...