FUNCTION:
1. very lovely image
2. built in mp3 player
3. 3A Battery inside, long time playing
4. use as enjoyment and education     
5. USB mass storage
6. with speaker function

Packing information: 
 Unit size:       28*20*60mm  
 Unit weight:      30.8/120g
 Unit packing:    Color box    
 Box size:             17*13*6.5cm
 Outer carton:     50pcs/ctn
 Carton  size:       57*37*31.5cm   
 N.W/G.W:          6/7kgs     
 20ft/40HQ:         21050/49650sets