Product Features:
1)There are different styles, such as E120, E200, E320, E800, E1200, E2222 etc
2)It is a lively electronic encyclopedia and advanced design with safe and convenient operation system. The contents with illustration explain the profound things in simple way with colorful instruction book for free.
3)There are many control methods including hand-controlled, voice-controlled, light-controlled, magnetic-controlled, touching-controlled, water-controlled, electric-controlled and so on