Meanwhile, Redkey W12 is only 1/2 to 2/3 the weight of other wet and dry vacuum cleaners. It's got the weight of a laptop and can be lifted easily by women, children, and older people. The light weight can also speed up the cleaning process. As for the runtime, Redkey W12 has a 2,600mAh lithium-ion battery that lasts for 45 minutes. So you don't have to worry about recharging the vacuum cleaner in the middle of cleaning.