Review (3/5): Although honestly - a wash cloth would also work.
Although this isn't the most productive cleaning tool, I can see it of some purpose.
The vibration modes have some noticeable movement.
And if one wishes = this fits good in hand to move around the face for quite a good scrubbing.
The teardrop design allows easier cleaning the edges of face to the hair line.
And with continual ultrasound movement = the scrubber leavers the face feeling cleansed & massaged.
Although honestly - a wash cloth would also work.
Don't know that this would actually remove blackheads,
other than the fact that it's deep cleaning might clean facial pores.
One hr charge = (I think) 12 hr run time.
(( which is confusing, "it can be used about 12 hours, and operated about 300 times" )))
Red light = charging
Blue light = done