Very bad product. Once you program it, if you accidentally press a button from the top, it punishes you and you can't use it unless you reset it.
Also, after a fall from the couch (35 cm height), something broke inside and it sounds like a maraca!
Furthermore, the batteries seem to lose contact easily and often require a light "hit" to work properly.

Overall, poor quality, bad purchase.

Spend 4-5 euros more and get a better one. For 10 euros, there are plenty of options available (I bought one for Samsung universal and I'm satisfied).