FunctionPlan APlan BPlan CPlan D TB1 ControlTB2 ControlTB3 ControlTB4 ControlProcessing capacity4 cores, 1GB running memory + onboard
8GB internal storage4 cores, 1GB running memory + board
8GB internal storage8 cores, 2GB running memory + onboard
8GB internal storage8 cores, 2GB running memory + onboard
8GB internal storageWIFI transmission√√√√Multi-screen stitching √ (up to 3 screen cascades)√ (up to 3 screen cascades)√ (up to 3 screen cascades) √ (up to 6 screen cascades)Audio output√√√√USB interface√√√√APP Control√√√√Screen split screen√√√√remote control√ (cable) √ (cable) √√HDMI× √× √WIFI netwaork× × √√3G/4G × × √√Multi-screen synchronization play× × √√Redundant backup× × √√Synchronous, asynchronous switching× √× √ GPS× × × × 
*Control method:
Easy to use: connect the screen to the WIFI via a communication device such as a mobile phone, and log in to the APP to implement the control panel.
Quick change: save the file to your phone and upload it in 10 seconds.
Screen split screen: support playback of common picture video formats, split screen, play more forms