資料來源:https://www.seeedstudio.com/Ai-Thinker---A1S-Wi-Fi%2BBT-SoC-Audio-Module-%28IPEX-block-output%29-p-3152.html
Sorry but this SKU# 113990579 is unavailable from Seeed now.
You can buy it from the original manufacture or other distributors.
For the technical support, pls feel free to contact Seeed or ask the original manufacture for help.
Thanks.