It's good and seems to be resistant.
Very nice the hard case

Thank you

In perfect condition I tried it and it works. Excellent product.

Came quickly. My neck stood up, supported the device in the Bosh place, I thought it did not help, but no, let go, by the evening I was already twisting my head. I recommend such a device at home. Gently to the sensitive place, especially to the maximum. Adjust

Very useful and functional