$16 ESP32-A1S ESP32 Audio Development Kit Comes with 2 Microphones, Audio Jacks & Headers - CNX Software
WiFi Spy Microphone With ESP32 (Devkit... ) - Hackster.io
ESP32 Bluetooth Low Energy (BLE) on Arduino IDE | Random Nerd Tutorials
I2S Communication on ESP32 to Transmit and Receive Audio Data Using MAX98357A
Raspberry Pi - ESP32 One, mini Development Board with WiFi / Bluetooth including Camera
Amazon.com: Waveshare ESP32 One A Mini Development Board with WiFi/Bluetooth Support Image Recognition Voice Processing Compatible with Sorts of Raspberry Pi Hats (Include Camera Module) : Electronics
ESP32-LyraTD-DSPG Audio Development Board - Espressif Systems | Mouser
Sound with ESP32 - I2S Protocol | DroneBot Workshop
Amazon.com: RASPIAUDIO ESPMUSE Proto esp32 Development Card with Speaker and Microphone : Electronics
qESP32 WiFi and Bluetooth ESP32 IOT DevKit – IOT-BOTS.COM