Using the state-of-the-art noise reduction technology, the fan noise of VOPLLS movie projector is reduced by 80%, and the heat dissipation is more effective. Also featured with audio output port to connect headsets or speakers as you please to enhance your viewing and sound experience. : Built-in Hi-Fi stereo speakers, VOPLLS video projector provides original audio fidelity with crystal clear sound quality.Small in size like a notebook, it doesn't take up any space on your table. 1.4lb weight portable projector fits easily in your handbag wherever traveling and camping so you can forget it's there. : VOPLLS mini projector has a compact design with size of 6.69x4.9x2.64 inches, which is almost a palm size.These ensure the projection image quality presents a real, dynamic, and color-vibrant effect. : VOPLLS upgraded home projector with latest 9500 L led light source and 1080P Full HD supported resolution, adopts advanced LED and uniform illumination technology, which make the edges of the projection brighter and clearer.