ESP32 PICO D4 SoC with a 240 MHz dual-core processor and 4 MB flash memory.
Wi-Fi and BLE connectivity; speaker rated at 0.8 W (NS4168), SPM1423 PDM microphone, SK6812 RGB LED, and 1 IR TX.
Can stream music via ESP32 wireless functions to a phone, tablet, or other device, or play designated streaming media over Wi-Fi; voice commands are supported when dedicated firmware is flashed.