ESP32-Audio-Kit Audio Development Board, ESP32-A1S Audio Development Board Module, WiFi+Bluetooth Module, ESP32 Serial Port to WiFi ESP32 Audio Kit/ESP32 Ethernet

It is well designed and works very well. You might need to buy some GPIO bus extenders, though, if you want to put a hat over it.

Beware: This AiThinker ESP-32 board has no software support. No documented pin routing to the HAL and Codec, no documented Codec, and no working software support library. This board will not work with the ESP-ADF and ESP-IDF libraries out of the box.

I do agree the mfg, seller etc should steer people to the right libraries to get this off of the ground easier.I found the library before I found the board so in my case the longest part was waiting 2 days for the board to arrive.Go to Git Hub and find Arduino-Audio-Tools and look under Audio Kit and you're good to go in Arduino IDE - piece of cake.I got the board for the same reason as the library author. It makes trying new things painless without constantly having to rewire breadboards. There's a bunch of buttons, dip switches (pay attention to them when using the library code it's usually commented at the top of the code as to required dip switch settings).Things I'd change (and will be on mine) is that the JST headers point vertical when the usb, sd and audio jacks are horizontal. The other thing is the BLINDING green led. I may remove or see about a stronger smd resistor.

Easy to install esp32 squeezelite. Hooked up to my lms, and even has a built in amplifier.

This board is pretty unique. No support really and information is scattered around everywhere. I can give a tip though. I was able to use esp-adf with a github repository I found. Search for esp-adf-component-ai-thinker-esp32-a1s on github and you'll be able to go forward with the examples.

Very good

This board comes with absolutely no documentation, and finding any seems to be impossible. Returned.

Documentation is all on the AI Thinker AudioKit GitHub page. In fact there are a number of GitHub pages with tools for these boards. If you can't figure it out, then perhaps you shouldn't be buying a DEVELOPMENT board. That being said, this works as intended. It's a good board to experiment with audio on. If you need help getting started Google HackerBox 0079 and there's an Instructable link that has all the resources you'll need.