Audio playback supports MP3 and WMA formats for versatile music playback. Picture display features include picture loop playback and automatic slide show with adjustable picture playback interval. Multiple slide transition modes provide smooth visual changes, and the device includes an audio and video synchronization function with play, stop, and pause controls. Memory and data input options include support for MMC and SD memory cards as well as USB drives (U disk) for easy content loading. Image formats supported are JPEG, JPG, and BMP for broad compatibility with common image files. Use scenarios Home photo slideshow with music: Load photos from a MMC/SD card or USB drive, set an automatic slideshow with a preferred interval, choose slide transitions, and use the playback controls to start or pause the presentation while the music plays in sync. Small event display: Run a continuous image slideshow with background audio during gatherings or exhibitions. The loop playback and transition options help maintain an engaging presentation, with audio and video synchronization to keep visuals and sound aligned. Classroom or meeting room display: Present imagebased content with an accompanying audio track, using the builtin slideshow features and compatible image formats to deliver clear, organized visuals without a computer.