... Horn,Car horn, horn speaker 1.Built-in audio speaker 2.Support 10W audio output 3.built-in SPI-flash Re-programmable Horn Siren,Alarm Horn,Car horn, horn speaker ... Voltage: DC9V ~ 24VRated output power: 10WattsSopport Key control and MCU Signal to noise ratio: ≥ 82db Size 10.5mm ... cable Applicationsalarm system, Bionic systems,Broadcast, Voice prompts and etc For more details,please don't hesitate to ...