Product details Features: 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. 4 buttons remote transmitters,compact and powerful 125db piezo siren.Alarm that Automatically Recognizes Vibration Frequency. Emergency Alarm: Anti-Hijacking by Cutting Power Supply.Fit any motorcycle with 12V battery. Size: 7*6.5*2cm Weight: 270g Colour: Black Material: ABS Quantity: 1pcs Package package: 1 motorcycle one-way anti-theft device note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.