Very easy to use, on the package is in English language shows how to set up this remote controller.
Works with all TVs that I tried.
Works from very long distance >10 m, has 2 powerfull infra-leds.
Small, you can hide it in the hand.
Cons: Installation of battery is not easy for the first time.
Other Thoughts: This remote controller can be used as replacement of your broken original TV remote controller, or as a funny gadget in the shops or restaurants :-).