This is a RS380 mini DC motor running at 3~6 volts with 17000~33000 RPM range
Spécifications:
Motor Diameter: 27.5 MM
Motor Height: 38MM (Not including output shaft)
Output shaft Diameter: 2.3 MM
Output shaft length: 6.4 MM
Voltage: DC3-6V
Speed: 17000RPM (3V) -25000RPM (4.5V) - 33000RPM (6V)