Alarm Horn, Car Alarm, Alarm Siren 1.Built-in audio amplifier 2.Support 10W audio output 3.color:black,red Alarm Horn, Car Alarm, Alarm Siren FeaturesAudio format ... ratio: ≥ 82db Size 10.5mm*8mm*7.5mmApplicationsalarm system, Bionic systems, broadcast, Voice prompts and etc For ... ------------------Guangzhou Waytronic Let sound change life-------------------- Alarm Horn, Car Alarm, Alarm Siren