Feature 1) ample parts for you to build your own robot at your pleasure. 2) powerful functions, lots of i/o ports on main controller and various sensors, enable you to bring your imagination into full play. 3) usb2.0 download cable makes it easy for program download and pc-robot communication. 4) easy to learn and easy to use. The programming platform can perform functions of icon-base flow chart editing, c-language code editing, and sensor data logging. Thus no matter you are a newcomer or a seasoned robotics hobbyist, you can program as you please. 5) on-line courses, fit for personal learning and training organization. About x-rcu Built-in dot matrix characters lcd. 8 analog ports and 12 digital ports which can be designed as i/o freely. 2 motor ports of high current. Built-in speaker. Low voltage indicator and communication indicator. About sensors and performers Jmp-be-1111 gray scale sensor (2 pieces) Jmp-be-1610a touch sensor (2 pieces) Jmp-be-1510 red led (2 piece) Jmp-be-3548x high-speed motor 3548x (2 pieces) Built-in speaker (inside rcu)