Description Name: Scratch Graphical programming Robot Item: Qbot Graphical programming software: WeMake(base on Scratch 2.0) Support: Windows IDE Input: obstacle sensor/button/infrared receiver/Ultrasonic sensor/line-tracking sensor Output: Buzzer/RGBLED/Two Motor port Microprocessor: Base on UNO Power: 3.7 DC lipo battery Off-line way: bluetooth module Diameter: 85mm Weight: About 140g