... presenter,Hi-fi speaker,wireless microphone touch screen all in one pc is a high performance machine, equipped with computer, wireless mouse, wireless ... :1. TFT Led Touch Screen 2. With document Presenter for A4,A3 size3. Audio and sound system. 4. Touch ... all-in-one PC, such as touch-screen all-in-one PC ,document scanner, visualizer, and visual presenter. Our company is well established and known for ...