The Coolshop online store sold me a Beurer sphygmomanometer, which turned out to be completely rubbish - it didn’t work at all. I got to read the multi-page instructions on how to send the scrap back. I followed the instructions and waited for many weeks for a refund (the second option was to switch the device to another similar one - No Thanks!). Eventually, I was sent a receipt for the refund, but the money itself was still not refunded. Instead, I heard that the package would be sent back to me and I would have to do the whole refund procedure again. The reason why the device was sent back, no one could explain. So we are at a dead end. I will not accept the scrap again and no refund will be made if the scrap is not returned (who guarantees that the scrap will be sent to me a third time - no one!). Coolshop boasts that they have a free return, but the system clearly does not work and the customer's interests mean nothing to this online store. Be wise and choose a more reliable place to buy. There’s nothing cool, fun, or easy about this store!