Built-in capacitive microphone with high sensitivity and accuracy. The microphone is designed with-a windproof-sponge, more accurate sound collection, filtering the impact of wind on the sound. It is light weight and ergonomic, making it a-fine tool for monitoring noise intensity, suitable for sound quality control in factory, office, home, school and construction site. Equipped with thoughtful-digital screen with backlights, large screen display for easy data reading, easy to cope with strong light, night and other harsh environments. It can measure and record the maximum and minimum values, supports data retention, with automatic-shutdown and low battery functions, convenient and practical to use. Excellent display quality, eye-friendly, low power consumption, low radiation., Manufacturer: CVJdfhRE