1. Material: ABS 2. Alarm sound level: 125dB 3. Applicable voltage: 36V-72V 4. Quiescent current: 3.5mA 5. Transmitting and receiving frequency: 315MHZ 6. Remote control effective distance: 300 meters 7. Two-way remote control, 300-meter vibration remote alarm, more sensitive, convenient and fast to use 8. Precision design and protection by plastic shell make the host have good daily waterproof function 9. 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. 10. Size: 70x65mm