M5Stack Atomic Audio 3.5 Base with Built in Mic - Supports External Mic Capture, Recording & Audio Ouput via 4-Segment TRRS 3.5mm Connector (CTIA Standard) for Atom Series Controllers, A166

["HIGH-FIDELITY AUDIO CODEC: Integrated ES8311 chip delivers 24-bit high-resolution audio processing with sampling rates from 16kHz to 64kHz via I2S interface for superior sound quality.","3.5MM AUDIO JACK: Standard headphone jack with 4-segment TRRS connector (CTIA standard) supports both audio output and microphone input for versatile connectivity.","FULL-DUPLEX COMMUNICATION: Enables simultaneous audio transmission and reception for real-time voice interaction, ideal for voice assistants and smart home voice gateways.","AUTO-SWITCHING FUNCTIONALITY: Automatically switches between onboard audio source and external microphone, as well as between speaker and external microphone for seamless operation.","COMPACT DESIGN: Lightweight at 0.42 ounces with dimensions of 1.89 x 0.94 x 0.69 inches, specifically designed for Atom series controllers (not compatible with Atom Voice)."]