Cheap piece of plastic, non ultrasonic at all, just vibration. on/off button seems from last century, not responding to push well, most of the time stuck and locked. Not satisfied at all.
Ordered 05.06, received 10.09 (moscow) packaging all crumpled. I hope nothing is broken. Delivery of course .... "fast", had to extend the protection of the order.
looks 100 percent like picture, thx all fine! but perhaps i expected too much, but it seems if the eraser does nothing on the teeth. i thought i can see that it erases the stain. perhaps ir needs more time, if yes i will send more info later