The PWD701 is an advanced security system kit from Pyle. Secure your vehicle and gain the benefits of a wireless security system, controllable by remote. This kit includes two 4-button transmitters, a status indicator LED, valet/override switch, dual stage impact detector, and anti-carjack functions - everything you've come to expect from a modern vehicle alarm system. Alert yourself and scare off would-be car burglars with the 120dB two-tone siren. Activate remote chirp to find your car in a crowded garage. Choose passive or active arming depending on the situation. Your alarm system is also extendable: remote keyless entry, trunk release, auto start, and power window roll-up are optional additions (not included).