Car Alarm, Alarm Siren,Warning Siren 1.Built-in audio amplifier 2.Support 10W audio output 3.with built-in Spi-flash Alarm Horn, Car Alarm, Alarm Siren,Warning Siren FeaturesAudio ... power: 10WattsSopport Key control and MCU Signal to noise ratio: ≥ 82db Size 10.5mm*8mm*7.5mmApplicationsalarm system, Bionic systems,Broadcast, Voice ...