Check the authenticity of the instrument of the ultrasonic cannon, enter the Peninsula Medical WeChat, click on the authentic scanning, scanning the QR code at the bottom of the instrument's screen, if the instrument is real, then it will prompt the success of the code and see the hospital to which the instrument belongs.
Supernatural gun wrinkle is generally no problem, provided that you choose a regular instrument. After all, such a hot instrument, counterfeiting is also possible, if you choose a fake instrument, it is certainly not reliable.