The Smart Box is supplied with a power cable, a HDMI cable extension, a user manual in English and a USB Micro USB cable. The manual is reasonably well understood my English school. A German manual would be desirable.
The Mini PC to the HDMI input of the TV to connect (with or without the extension cable) and then connect the power cord. In order to use the Smart Box or mouse required, preferably a wireless mouse, as this is directly connected to the Mini PC. The mouse was immediately recognized, as is the wireless Bluetooth keyboard, which I've used for easier typing.
The connection via Wi-Fi worked right away and running quickly and without interruptions, but the distance is not too large. The storage capacity is sufficient with 4 GB, only the irritating 8GB, which are advertised on the product page. Otherwise, on the Mini PC the famous Android system. The apps I've tested all ran. Above all, the film Apps and You Tube ran without problems.
Conclusion: For a small price, the old TV at a great Smart TV, what more could you want?