Fangrui Product Details High-fidelity Sound Control: Experience Superior Audio With Our 30w Power Voice Broadcast Module, Designed For Digital Voice Recorders. It Features A 9-route Switch Control For Precise Playback, Making It An Essential Tool For Sound Enthusiasts Seeking Top-notch Audio Performance. Versatile Playback Options: Tailored For Compatibility With Various Devices, This Module Offers Both High-level And Low-level Control. Whether Youre Integrating With Existing Systems Or Setting Up New Installations, It Provides A Flexible Solution For All Your Audio Playback Requirements. Easy Audio Customization: Effortlessly Update Your Soundtracks Via Usb And Enhance Your Projects With An External Warning Light. This Module Supports Tf Cards And Usb Drives Up To 32gb, Allowing For Extensive Audio Storage And Easy Management Of Your Sound Files. Isolated Control For Safety: Ensure Safe Operation With Our Module That Features Optocoupler Isolation. This Design Is Ideal For Secure Voice Recorder Applications, Providing Peace Of