Perfectly Compatible: Servo motors, functional accessories. All parts are compatible with parts from popular building block brands and with technology remote control building block models. Parts can be combined and matched according to your needs and preferences. Note: This product does not contain a battery with a power function and must be purchased separately. Brick Remote Control and Receiver: The motorized system has 4 channel selectors on the remote control and the controller. To work together, they must be set to the same channel. The remote control is powered by 3 1.5V AAA batteries (batteries not included), 2.4G four-channel switch with 4 modes and can remotely control 4 receivers. Fun and Safe: Assembling the motor is not only fun but also a challenge, allowing users to improve their practical skills and let their creativity flow. The Technic Motor Set offers hours of fun and is a great gift for birthdays, Christmas, and other special occasions. Perfect Gift Choice: This product is not just a toy, but also a new attempt on the path of learning and education. The durable motor set provides hours of fun, and building the blocks allows your child to practice hand-brain coordination, stimulate imagination, and let your child have fun doing things. Warning: Use under adult supervision