1. Material: ABS 2. 300 meters vibrating remote alarm 3. Precision design and protection by plastic shell make the host have good daily waterproof function 4. 125dB high decibel speaker design, which is equivalent to the sound intensity of an airplane taking off. It has strong penetrating power, effectively scares away car thieves, and effectively sounds the siren at the same time. 5. The chip has strong anti-interference, can be controlled at a longer distance, and is more sensitive and convenient to use. 6. Made of high-quality steel wire, it does not rust, is tough and does not break. The excellent conductor performance of copper metal makes the equipment more sensitive and easy to use, which is a reliable guarantee for the operation of the equipment. 7. Host size: 75x26x78mm