Description: High Power Voice Module: This 30W module supports wide voltage power supply and multiple decoding formats. It features a USB data cable for easy audio file updates and includes a 30W Class D megaphone for clear broadcast Trigger Interface : Equipped with a 9-channel one-to-one trigger interface and high/low 2-level trigger version, this module offers 8 trigger working modes. The potentiometer allows for volume adjustment and optical coupler isolation ensures reliable performance Flash Storage Capacity: With onboard 64Mbit 8MByte flash storage, this module can store a large number of audio files for playback. The DIP switch settings provide flexibility in triggering options, making it for various applications Easy Connectivity: Simply use a USB data cable to connect this module to a computer for changing audio files. It also supports connection to an external warning light, adding extra functionality to your system Wide Voltage Compatibility: This voice playback module operates with a DC9-24V power supply, making it suitable for a range of voltage requirements. The high power output and trigger options make it versatile for different projects Specification: Color: As Shown. Material: PCB. Size: Approx 9*6*2CM/3.54*2.36*0.79inch. Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package Includes: 1* Voice playback module 1* Data cable 1* Screwdriver