Complete car alarm system designed to protect your vehicle with maximum security. This two way FM system not only provides maximum security but also great convenient features for your vehicle. The 3000 feet long range ensures you to arm/disarm or locate your vehicle at ease. The code hopping feature eliminate the chance for your transmission code to be capture or grabbed by thief. 2 back lighted LCD display remote control allow you to clearly identify your vehicles current status and can remotely starts your engine and air conditioning. Other unique features include: .Two-way modulation and code learning system .Double-sided PCB and total SMT production .Remote lock/unlock, remote arm/disarm .E-EPROM code memory .Intelligent-alarming delay for cars with dome light delay .Visible and/or audible car locator .Automatic arming reminder to further enhance security .Car anti-hijack protection engine cut .Remote panic with siren chirp and light flash .Environment-friendly mute mode .2-wire original central door lock interface .Second and third channel output .Valet mode and all zone protection .Keyboard lock. This item also comes with a stylish and compact size 24 capacity CD wallets you to store your favorite CD collecting in your car. Technical Data: Frequency: 433.92MHz ***Please note this system requires professional installation. copy of installer shop receipt is required for return or exchange, NO EXCEPTION!!*** For return of this item the box must shown un-open and new as original received. If it's defective, a copy of installer shop receipt is required for us to verify the installation was performed by a professional installer.