High-definition large screen display: 22-inch high-definition LCD screen with high resolution and bright colors Horizontal and vertical switching: supports horizontal and vertical screen placement modes to meet display needs in different scenarios Video advertising playback: supports multiple video formats and can play advertising content in a loop Wide application scenarios: suitable for shopping malls, supermarkets, hotels, restaurants and other commercial places Timer power on and off: built-in timer power on and off function, users can set the power on and off time as needed to achieve automatic playback and shutdown