Description: 【Advanced Audio Technology】: The Voice Recognition Base is equipped with an ES8311 mono audio decoder, MEMS mic, and NS4150B power amplifier. This combination ensures fidelity audio processing with 24 bit resolution and a sampling rate of 16KHz-64KHz, ideal for precision voice recognition applications 【Seamless Voice Interaction】: This base supports full duplex communication, allowing simultaneous sending and receiving of audio signals. This feature enhances interactive functions such as voice recognition, wake up commands, and recording playback 【Versatile Development Platforms】: Compatible for 1.0/2.0 and for IDE, the Voice Recognition Base offers flexibility for developers to create custom AI voice interaction systems or solutions 【Compact Design】: With dimensions of just 2.4cmx2.4cmx1.414cm/0.94inchx0.94inchx0.56inch and made from PC material, this device is compact yet sturdy enough to fit seamlessly into various environments without compromising performance 【Comprehensive Package】: The package includes 1 main unit that integrate all necessary components for immediate deployment in AI voice recognition systems or educational projects focused on smart technology applications Specification: Audio codec: ES8311: 24 bit resolution, using 12S MEMS mic: MSM381A3729H9BPC  Signal to noise ratio (SNR):>65dB Power amplifier: NS4150B: Class D power amplifier Speaker: 2014 type cavity speaker: 1W@8Q Standby current: DC3.3V/3.36mA Working current: DC3.3V/14.84mA Working temperature: 0-40°C Product size: 2.4cmx2.4cmx1.414cm/0.94inchx0.94inchx0.56inch Size Chart: 2.4cmx2.4cmx1.414cm/0.94inchx0.94inchx0.56inch Package Includes: 1X Voice Recognition Base Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.