Car Alarm 1-way Security System with two 4-button remotes. With rolling - variable non-copyable codes, the Viper 3400V alarm is the most advanced electronic system available today at the most affordable price for your car. It features hood, trunk, door protection, engine immobilization, and includes a two-level shock sensor (warning and main alarm). It has 2 4-Button remotes with two auxiliary channels. Fully upgradable with all Directed accessories.