Specification: Memory Device: 512 KB Flash Memory Capacity: 54 pcs Display Element: 1.1"CSTN (96*64 Dots, 4096 Color) Support Format: BMP, GIF, JPG, TIF Lithium Batteries Power: Push the Power Switch to ON The Batteries will be Charged When connected with USB Cable (About 3 hours). (The mini digital photo frame can work during charging) Technical Parameter: * Application: Photo Viewer * Working voltage: Li-ion Battery 3.7 V/ USB 5V * Working Temperature: 0 C~40 C * Transmission Interface: USB 1.1 * Accessories: USB Cable, Software CD, Users Manual, Gallus * Operating System: Win98 SE/ME /2000 /XP * Size: 5.1*4.6*1.8 cm