Review on ultrasonic toothbrush Sonic Toothbrush X-3, white by Dana Ursu ᠌

Managed to use it once. Then the brush began to turn on and off by itself, most likely water got in due to unsatisfactory sealing. At one time I took these to Aliexpress, they did not live just as long. Has pros: There are 4 nozzles in the set, but in terms of workmanship there are a lot of 1, it will break. Has some cons: The brush spontaneously turns on and does not respond to the on / off button. After a while, it turns itself off. And so on for several cycles.