They sell cheap Chinese consumer goods. I bought a tonometer with a built-in stethoscope. It was written on the website that the stethoscope is embedded on the box with the product too.
In fact, there was no built-in in the box . To the complaint, why is there one thing on the box and the site, but in fact a cheap fake, they answered "what doesn't suit you?"
The fact of non-compliance was recognized, but they refused to make a replacement, as well as a refund. They were motivated by the fact that there is no return in pharmacies a priori. They didn't close their joint. They were rude and didn't apologize.
Don't buy anything from these clowns! If suddenly there is no choice and you have to buy from them, then be sure to carefully check the product for actual compliance with the description on the box and the website before paying, turn it on and let the employee show that he is a worker.