The package arrived in Poland quickly, within two weeks. The product is actually better than described. Initially, mirroring my phone screen to the TV didn't work, it would briefly flicker and then return to the TV's blue menu. After multiple attempts, I connected through the web (the dongle to the home WiFi, and the phone to the dongle's WiFi hotspot, which was created by connecting the dongle to the home WiFi). The TV Stick updated its firmware! You can access the dongle's settings through a web browser on your phone, and in the EZMira app, you can launch apps like YouTube and it works perfectly, without any lag or screen tearing (I can't test 4k since my TV is fullHD). The sound plays very well from the TV's sound system with an amplifier. A great feature is that my phone doesn't lag while playing fullHD video in the background, allowing me to watch videos on the TV while using my phone for other tasks. This TV Stick is a really good product once you update the firmware and configure it through the WiFi in a browser (refer to instruction point #3!).