Features: This product is a DC gear motor with magnetic coded disc hall encoder This DC motor features large moment of force, low speed, and low noise. The motor is made of metal gear, wear-resisting, avoid tooth breaking, so with long serving life. This motor is adopted of pure copper wire coil, with low heat and low loss. Widely used in Electronic locks, DIY toy cars, little robots, tracking cars, balancing cars and so on Specification: Model:GBMQ-GM12BY20 Material: metal Voltage: DC 6V Power: 2W Output signal: AB phase Shaft length: 10mm or 0.4in Shaft diameter: 3mm or 0.1in Hall response frequency: 100KHz Operating temperature range: -30 - 110 Output pulse number: 3ppr Type (Optional): 6V 30RPM,6V 50RPM,6V 60RPM,6V 70RPM Length: 4.2cm or 1.7in Weight: 14g or 0.5oz Wiring method: black: motor power"-" red: motor power"and" brown: encode power "and" green: encode power "-" blue: encode output A phase white: encode output B phase (Note: Encoder input voltage: 3.3-12v) Package list: 1 x gear motor