1) Diagonal:1.5 inch CSTN screen
2) Photo format:JPG/BMP
3) Show time,calendar
4) Play mode:manual or automatic play
5) Display mode:Single/ Slide mode
6) Memory Capacity:8M/16M
7) Rechargeable Lithium battery inside, Charge by USB
8) Power supply:inner 3.7V Li battery or by 5V usb adapter
9)Auto power on & off function  
10)Resolution:128 x 128 pixel                                 
11)Three function key-press:up key, down key, menu key                       
12)Material:plastic crust; metal key ring
13)Accessories:USB cable, key ring, color box, manual