Features:_x000D_1 Can be assembled at anytime youself, helps to develop children' practical ability _x000D_2 Helps to develop children' logic thinking ability _x000D_3 The robot supports to rotate more parts in its body, such as head, arm _x000D_4 It supports to rotate in situ 360 degree smoothly _x000D_5 USB charging design, easy to charge _x000D_Specification:_x000D_Suitable for age: older than 8 years old _x000D_Power by: 3 7V 400mAh Battery included _x000D_Charging time: 120 mins _x000D_Working time: about 40 mins _x000D_Controller: 2 x 1 5V AAA Batteries not included _x000D_Weight: about 651g _x000D_Package:_x000D_1x Robot Including Battery_x000D_1x Controller Not Including Battery_x000D_1x 3 7V Battery_x000D_1x USB Charging Wire_x000D_1x Manual_x000D_Age Range: 14 years old , Grownups , 813Years_x000D_Certification:3C_x000D_Theme:Fantasy Sci-Fi_x000D_State of Assembly:Unassembled Kit_x000D_Power Source:ElectricPackage List:_x000D_1 x Robot Including Battery_x000D_1 x Controller Not Including Battery_x000D_1 x 3 7V Battery_x000D_1 x USB Charging Wire_x000D_1 x Manual