Open Machine: Long Press button more than 3 seconds Wireless ；2 batteries included Wireless models: Working voltage: 7.4V Range of use: dual-use for car and home Rated power: 40W/50W Battery capacity: 2000mAh Adjustment: two-speed adjustment Suction strength.5000pa Charging time: 1.5h Life time: 20-30 minutes Dust cup capacity: 0.2L Description: The product has CE, FCC and RoHS certification
