Speedly cooling, Portable multi-function machine 30 W 6500K color temperature, LED lights 16,700,000 kinds of color display capacity Multi-language screen menu Support of 6 W stereo speakers Built-in DVD and USB interface,Suport SD / MMC memory card Powerful AV function to provide high quality AV picture External use of the adapter, the application of input voltage 100-240V, 19V DC 3.15A output Supported formats: DivX/MPEG4/DVD/VCD/SVCD/CD/CD-R/MP3 and so on. Product specifications: Function: LED Multimedia Projector Project method: front Maximum resolution: 320 * 240 LCD: Single-sided, 2.5 "and QVGA, transmission Scaling: Fixed focal length Focus: Manual Focus Brightness:200 lumens Average brightness: 70% of the average effective Screen Size: 20 "-60" Aspect ratio: 4:3 / 16:9 Operating temperature :10-40 degrees Noise value: less than 40dB