BuildWin AX206 main control series; 1.5 inch TFT true color display monitor; 8MB storage space, can storage 107 pictures; Supports BMP, JPG, GIF format pictures, 128 x 128 resolution; Supports English, clock, calendar display, and automatically shut down function; Manual and automatic browsing pictures, you can set up automatic switching time;​ 3.7V rechargeable lithium battery, standby time up to 30 days, continuous display pictures up to 3~4 hours; USB 1.1 interface, free-drive; OS supported: Win 98 / SE / ME / XP and Mac OS