M5Stack Atomic Echo Base Voice Recognition Base for M5 Atom Series AI Voice Recognition Interactive Systems Compatibility: Designed for the M5 Atom series to ensure seamless integration Voice Recognition: Advanced voice recognition capabilities to enable interactive AI systems for smart home and education applications High-quality audio: Adopts ES8311 mono audio codec, 24-bit resolution, 16KHz to 64KHz sampling rate, supports I2S protocol for high-fidelity sound processing Integrated microphone: Equipped with MEMS microphone MSM381A3729H9BPC, providing a high SNR of ≥ 65 dB, ideal for clear voice capture Powerful output: Includes Class D amplifier, NS4150B and 2014-type cavity speaker, 1W@8Ω, to provide powerful audio output Audio codec: ES8311: 24-bit resolution, using I2S protocol MEMS microphone: MSM381A3729H9BPC, signal-to-noise ratio (SNR): ≥65 dB Power amplifier: NS4150B: Class D power amplifier Speaker: 2014 type cavity speaker: 1W@8Ω Standby current: DC3.3V/3.36mA Working current: DC3.3V/14.84mA Working temperature: 0-40℃ Material: Plastic Color: As shown (The product appearance and printed words may vary depending on the batch, but this does not affect use) Package Contents: 1 x Atomic Echo Base