Specification:
Item name: DJI Tello Motors 8520 Coreless CW CCW
Voltage: DC 3.7V
Shaft end play: 0.05-0.3mm
No-load speed: 52000±10%RPM
No-load current: 93mA (MAX)
Load speed: 24200±6%RPM
Load current: 2200mA (MAX)
Starting voltage: 0.8V DC (MAX)
Dielectric strengt: 5MΩ (MIN)
Gross weight: 5.5g/pc

Notice
(the tello drone is not included,this is not original MOTORS)

There may be some deviation due to manual measurement.