This dev kit provides a turn-key Alexa built-in reference solution for low-cost connected devices with AWS IoT Core connectivity. This solution is based on Espressif’s ESP32 MCU with integrated Wi-Fi and BT/BLE connectivity and DSP Group’s DBMD5P voice processor. – Far-field – 2-mic – $45.00 . Learn more »
https://developer.amazon.com/en-US/alexa/solution-providers/dev-kits