Dorr DIGI BLACK "II". Display diagonal: 177.8 mm (7 "), Display resolution: 480 x 234 pixels, Display: LCD. Compatible memory cards: CF, MMC, SD. Interface: USB 2.0. Operating temperature range (T-T): 10 - 60 °C, Storage temperature range (T-T): -20 - 70 °C. Power source type: AC, Input voltage: 100 - 240 V