What are the defects and inconvenient places of the present bathing machine?

At present, most products on the market are handle-type, which looks like the arm is lengthened and can be washed to the back. But the brush head is too heavy to hold with one hand, let alone relaxed, and a little tired. Especially girls have no strength. Coupled with the way it rotates, it is slippery to put on shower gel or soap, and the brush head is not strong and difficult to control. I know everything I have used, but there is a new electric bathing machine on the market at present, which is different from the one on the market at present. Using hand-imitating massage scrubbing, you can not only scrub your back with a bracket, but also hold it with one hand or both hands, which is convenient and easy to use. This is a better bathing machine that I recommend.