Produk ini bergaransi 6 Bulan Features： 1）Control range: 1.3 million pixels, the maximum horizontal support is 3840 pixels, and the maximum vertical support is 1920 pixels； 2）Signal switching: support arbitrary switching of 2-channel HDMI synchronization signal and 1-channel USB signal； 3）USB playback: it supports direct playback of videos and pictures in various mainstream formats under the root directory of the U disk, and supports 1080p HD video playback at most； 4）Audio input / output: support 2 channels of HDMI audio input (one out of two plays), and 1 channel of TRS 3.5mm standard dual channel audio output； 5）Output network port: Standard 2-way gigabit network port, direct level connection card receiving； 6）Brightness setting: it supports one key brightness adjustment without tedious operation; 7）Key locking: lock the key to prevent abnormal display caused by misoperation； 8）Wireless control: support infrared remote control to switch programs, brightness settings and other functions;