Description: Smart alarm that automatically recognizes vibration frequency. Remote arming/disarming, remote transmitters. Resistance to high pressure and waterproof. Ultralow power consumption without an effect on battery life. Easy installation, connected to positive and negative electrodes. Specification: This electronic security system with remote controls can help your motorbike keep away from thieves Remote Arming/Disarming Remote Engine Start: Keyless Entry Adjustable Shock Sensor Flashing lights warning Call for Help in Emergency 4 buttons remote transmitters Compact and powerful 125db piezo siren Smart Alarm that Automatically Recognizes Vibration Frequency Emergency Alarm: Anti-Hijacking by Cutting Power Supply fit any motorcycle with 12Volt battery Material: Plastic Input Voltage: 12V Fitment: Fit for most motorcycles with 12V battery. Size: Approx 60*60*20mm/2.36*2.36*0.79inch Package Includes: 1 Piece High Power Siren 1 Piece Brain Module System Built-in Shock Sensor 2 Pieces Remote Controls 1 Piece Connection cables 1 Piece Sticker : Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check the size measurement and the picture carefully before making payment. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand,Thank you.