Screen: Active Matrix TFT LCD(digital signal) Screen size: 7?(16:9) Resolution: 480 X 234 Pixels Brightness: 250 cd/m2 Contrast: 300:1 View Angle: 120?L/R), 100?U/D) Support format:JPEG,MP3,MPEG1,MPEG2,MPEG4 Format. Compatible memory cards: CF, SD, MS, MMC, XD Built-in 128M memory (optional) USB Host Port 2.0 - Connect to your USB flash drive and digital camera USB Device Port 2.0 - Connect to your PC to download photos directly With Remote control Signal Output: Audio and Video output Stereo speakers, 1W+1W Horizontal: 70 degree Vertical: 70 degree Dimension: 22.5(H) X 16(V) X 3.8(D) cm AC/DC Adapter: Input 100-240Vac, 50-60Hz,Output 12V. Power consumption: 15W Operating voltage: DC 12 V Operating environment: 10 ~ +50 ℃