[Product manual]: 1. Button the power button for 1.7 seconds to turn on the motor and it is in low-speed working state. Short the button to switch to high speed, and short the button again to shut down. Cycle in this way! Double-click the power button twice to turn on the tail flashlight, double-click it twice again to turn on the emergency flash mode; double-click it twice again to turn off the flashlight! 2. Indicator light During the charging process, the green light is always on, and the green light is off when fully . When the motor is working, the green light is on! The motor has slow start and abnormal protection. When you the button to turn it on or off, the indicator light respond 0.3 seconds later, which is normal! [Motor]: 45 brushless DC motor [Vacuum degree]: about 14000pa [Working voltage]: 11.1V [Battery capacity]: 3 x 2000mah [Rated current]: 2.55A [Rated power]: 120W[max] [Noise]: ≤75dB [Using temperature]: -20℃~+50℃ [Charging interface]: TYPE-C [TYPE-C cable length]: about 0.8m Color: black Material: ABS Package Contents: 1 x vacuum cleaner body 1 x flat suction set 1 x charging cable 2 x filters 5 suction accessories Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.