Dual mode control1 Remote control (left right forward and backward) 2 Smartphone app with Bluetooth (voice control course control gyro mode programming mode)Easy to assemble according to the instructions with diagrams children can assemble this fantastic building block robot step by stepEducational Toy Expand childrens handeye coordination concentration logical thinking skills and creativity After completing the building learning toys bring children the fun of manipulating and programmingPlease note App Support need Apple version 90 and above or Android version 40 and above If you have any problems please contact us We offer you the 180day refund service and lifetime warrantyTechnical data robot kit 17 x 18 x 112 cm 120 minutes charging 40 minutes playing 24 GHz remote control remote control distance 20 metres