Feature: 1. Easy to install, just paste, no wiring, easy to use. Specification: Features:
Specifications: Material: Plastic and Metal Rated Voltage: 12V DC Sound Index: 120dB Sound Frequency: 3.8KH2+10% Transmit Speed: 3H2 increase or discrease 10% Size: 5.2*5.0cm/2.0*2.0in Package Weight: 64g/2.3oz Package List: 1 * Sound Alarm System |