One-button start: Press the brake, then press the start button once to turn on the engine. Press again to turn off the engine. The first press activates AC power, the second press turns on the power, and the third press turns off the power. Remote start: Press and hold the tailbox button and lock button simultaneously for 3 seconds to start. Remote start range is approximately 0-40 meters (actual distance may vary based on environmental conditions). Remote engine shutdown is supported when engine is running remotely. Trunk release: Press and hold the remote trunk button or function button for 2.5 seconds to open the trunk. Remote operation range is approximately 0-40 meters (actual distance may vary based on environmental conditions). Remote locking: Press the lock button on the remote to lock the doors. The horn will sound and the turn signals will flash. Remote range is approximately 0-40 meters (actual distance may vary based on environmental conditions). Intelligent anti-theft feature: Engine cannot be started when the vehicle is locked. An alert will prompt if speaker wires are connected. Press and hold the unlock and lock buttons simultaneously to switch modes (can be set to silent mode). Product features: Universal push-button start/stop system for cars, intelligent and convenient, enhances vehicle functionality. Allows push-button engine start and stop, remote engine start. Smart remote control system for remote vehicle operation. Bluetooth-enabled module allows mobile phone control of engine start/stop and central locking functions. Mobile phone can control central locking, even without a physical key. Main functions: Mobile phone control of engine start/stop, remote control of engine start/stop, mobile phone control of central locking, remote control of central locking, one-button start/stop system, remote trunk release. Automatic shutdown after 20 minutes of inactivity. Material: Plastic Color: Black Package contents: 1 x One-button start module, 2 x Remote controls, 1 x Bluetooth module with wiring harness. Only the items listed are included; other accessories are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement tolerance is +/- 1-3 cm.