Imaging technology: TFT LCD Physical resolution: 320*240 Light source type: LED Supported resolution: 1920*1080 Projection distance: 50-400cm Product size: 110*90*50mm Screen aspect ratio: 4:3/16:9 Input interface: USB Features: Connect Smartphone Color: 16.7M Output interface: earphone Focus: Manual Life of light source: 30,000 hours Machine power: 24W(max) Speaker: 4Q2W Weight: 250g Projection size: 16 to 100 inches Power Supply: 12V2A/5V2A Specifications: The principle of LED reflection imaging reduces eye irritation and protects eyes. Built-in 42W speaker, can also connect external 3.5mm earphone or stereo. Adjust the imaging distance to adjust the projection size, from 14 inches to 100 inches. Using a liquid crystal display with a resolution of 320*180, the image uniformity is significantly improved. Using professional optical lens, the four corners of the image are clearly visible, which solves the traditional defocus problem. Wired screen projection, use the smartphone data cable to connect the projector to realize the screen projection function, and support both iOS and Android systems. Support mobile power supply, use as you like, such as outdoor camping, picnic and other occasions. Innovative design, perfect combination of fashion and art, using ABS plastic material, wear-resistant, long service life. Compatible with multiple devices Fire TV Stick/Headphone/U Disk/Game/Camera/Phone/Tablet/PC/Amplifier This portable mini projector, kids can stay away from mobile phones, ipads and other electronic products, it is perfect for playing games, watching videos, listening to music, studying. Specification: Package Included: 1* YT300 projector 1* Power adapter 1* Remote control 1* User's manual