Feature: 1. Easy to install and use. 2. Can starts or stop your car much easier and keep your car safe at the same time. 3. Push button engine starts. 4. Automatically lock the host after stalling 15 seconds. 5. One push button to starts or top the engine. 6. This item is only work with D C 12V car. Specification: This is a simple and easy use with Finger Engine Starts Push Button Starts Stop system. Features: Easy to install and use. Can starts or stop your car much easier and keep your car safe at the same time. Push button engine starts. Automatically lock the host after stalling 15 seconds. One push button to starts or top the engine. This item is only work with D C 12V car. Specifictaions: Main material: ABS Color: black Voltage: 12V Standby current: 8mA(last one month) Package size: 150 * 100 * 50mm / 5.9 * 3.9 * 2.0in Package weight: 325g / 11.5ounce Packing List: 1 * Car Engine Push Starter Host 1 * Push Starts Stop Button 1 * Sensor Ring 2 * Key 1 * Installation Wire Package List: 1 * Car Engine Push Starter Host 1 * Push Starts Stop Button 1 * Sensor Ring 2 * Key 1 * Installation Wire