Electric cleaning Brush ECB-01Rated Voltage : 3.7VCharging Voltage : 5V-1ACharging time : 5-6 hoursBattery Capacity : 1500mAh Rated Power : 25WUSB Charged 7 brushes  Net Weight : 1.2kgsColor box : 44.3X18.8X7 cm46.5X44X68.5 cm (18pcs ) N.W/G.W: 21.6 /23 KGS 20’/40’/40HQ: 3510/7020/9360 PCS