Requires 3XAA battery(Not included battery) Material: non-toxic plastics Weight: 50g Size: about 8.5 x 7.5 x 1.2 in How To Use: When children want to play, first choose the mode they want. There are many modes. Parents and children are invited to explore various functional modes together. Then, according to the prompt of the equipment, a play can be completed by pressing the corresponding position with the hand. In the process of playing, children will exercise their coordination ability of hands, eyes and ears. At the same time, they need to answer in a prescribed time to cultivate their good mentality. Matters Needing Attention: Adjust the volume according to the actual needs Keep away from fire and humidity. In order to save our Earth environment, 2A batteries will not be included into the item. Package List Packing carton x 1 Learning laptop x 1 1Our educational laptop for children is your best choice to balance between play and learning. 2 Rich pictures of life items, exercise children& 39;s visual recognition. 3 Rich voice library, exercise children& 39;s hearing recognition. 4 Rich puzzle games to train children& 39;s hand-eye coordination and logical thinking ability. 5 Using non-toxic and safe materials and radian design to ensure the safety of children.