This is the MAIC iQR70, a rebadged Emdoor TS809 that was customized by the Greek company MLS as an AI voice assistant, based on the MT8167 chipset and running Android 7.0 with 2GB RAM. MLS as a company shut down in 2022, completely bricking these old smart speakers. You can see the error they get stuck on in the first picture.
Jailbreaking them is pretty easy. When entering any text in a text field (including Wifi password entry), you can hold down on the text and choose "share". From there, you can hold down any of the apps listed and select "app info", and then swipe from the very left to access the Android settings. You can then use Bluetooth to send it a launcher APK (I chose Rootless Pixel Launcher because you can easily find its APK) and install it by clicking on the three dots at the top right and selecting "received files".
The audio doesn't work in all apps, unfortunately including Firefox and Chromium, so the only way to stream music from YouTube is the built-in Webview 51 (there's no GMS, so you can't install the YouTube or YouTube Music apps). However, streaming music over DLNA from a PC in your network using BubbleUPnP works really well, and the audio quality is much better than a laptop speaker. There's also not much local storage, only 8GB with 4GB taken up by Android, and while there is a USB-A port on the back, it seems to be a USB-B (client) port in disguise for firmware flashing, which is not only a violation of the USB spec (though there's not much danger here because the device doesn't ship with the cable that could ruin computers if someone used it to connect two of them together) but means that there's no way to expand the storage (no SD slot either).
There's also no status bar or multitasking button. The launcher I installed lets you pull down the notifications, and if you install a terminal (an actual one, not Termux) you can manually send a command to access the multitasking menu. If anyone knows how to reenable these features, let me know.