Adopting Jerry's ultra low power Bluetooth intelligent chip, with rich intelligent compatible design, integrating 2 analog or digital microphones for background noise reduction processing. The main microphone captures the user's voice, while the secondary microphone is used to capture background noise such as wind, car sound, distant speech, etc. It supports ENC environment noise reduction technology, sensitivity: -35dB, and supports real-time monitoring and playback functions. This solution has extremely low power consumption and is easy to produce.