ATOM ECHO is a programmable smart speaker based on the M5ATOM design. Its form factor is very small, its dimensions are only 24 * 24 * 17 mm. Music can be played via the BT capabilities of the of the ESP32 from a cell phone or tablet. The device can be programmed to connect to AWS, Baidu and other cloud platforms and use the built-in microphone and speaker for voice interaction, so that ATOM ECHO has certain AI capabilities and can support voice control, storytelling, Internet of Things and other functions. The speaker is equipped with an RGB LED (SK6812) that visually indicates the visually indicates the connection status. It can not only be used as a BT speaker, but also has the control function of the Atom series. The screw hole on the back is convenient for the user to fix.