The TA656 series is a mini noise meter equipped with Bluetooth communication functionality, allowing wireless connection to mobile devices. Users can monitor real-time data, adjust settings, and remotely view historical data through a dedicated app, greatly enhancing ease of use. Additionally, the series features offline recording capability, enabling data storage in the main unit even when not connected to a mobile device, ensuring reliable noise monitoring in any environment. The instrument utilizes a micro capacitive microphone sensor technology and a high-precision operational amplifier chip design to convert ambient noise into electrical signals. The data is processed through a bandpass filter weighting network and a microprocessor chip, with the measurement results clearly displayed on an LCD screen. Compared to traditional noise meters, the TA656 series is more compact and user-friendly, enabling real-time environmental noise detection. This device is widely used in various fields, including environmental monitoring, industrial enterprises, urban noise monitoring, construction sites, and shipping channels, providing precise noise data monitoring solutions to meet diverse application needs.