[Best Viewing Experience]: Supports for manually adjusting focus, you can freely adjust the from 16 : 9 to 4 : 3, and allows up to 1.1-4.0 projection distance. Using 20 thousands hours of LED , which is harmless and no radiation, environmental-friendly and durable to use. [Screen Mirror and HIFI Stereo Speakers]You can use an adapter (not included) to connect hd projector to a smartphone or laptop for screen synchronization. LED projector also has a built-in HIFI stereo speaker ( 8 ohm2w) with , providing powerful for or games. [LED Environmental Protection ]Mini projector is equipped with LED light, and it delivers and clear images, being perfect entertainment. The long-term contact with the display screen can not be ignored to the eyes. LED environmental protection , diffuse reflection imaging, more than 30,000 hours of service life. soft light, and will not be tired after watching for a long time. [Multimedia Connection]: Home video projector is fitted for multiple input interfaces, AV interface / USB / TF card socket / power interface. compatible with TV Box, , DVD player, smartphone. [Portable to Carry] portable projector size is small and weight is light, which is easy to carry and travel. Natural resolution is 640x480P, can support 1080P HD. and it can deliver 20 inches to 100 inches size. Plug Type:US Plug,it applies to Canada, , Mexico, Thailand, the , the Philippines,Taiwan and so on. colour: black Material: plastic size: 137x126x56.6mm Package Contents: 1 x projecter Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.