Material: ABSSize: 138MM * 35MMThe three speed regulation ranges from 2-4-6 revolutions per minuteThe load bearing capacity is 3KG -2.5KG -2KG according to different rotational speeds.3. Forward and reverse rotation function.4. Set the round-trip rotation function according to the rotation angle, and the round-trip rotation angles can be set to 45-90-180-360 degrees.1. Power on: Press any button to power on, and briefly press to operate.2. R/L: Switch between clockwise and counterclockwise directions, short press to operate.3. SR: Speed switch, 2, 4, or 6 laps per minute, short press operation.4. A S A: Angle switching, 45 degree round-trip, 90 degree round-trip, 180 degree round-trip, 360 degree round-trip, short press operation.5. IN 5V: MicroUSB 5V external power input.6. Shutdown: Press any button to shut down, and hold for 3 seconds to operate.7.18650 lithium battery or 3 AAA batteries for power supply (batteries not included)8.18650 charging status indicator, IN 5V port diffuses red light during charging, while IN 5V port diffuses green light and is fully charged.