Easy to Use: One-button operation provides instant readings with a clear LCD display, perfect for quick sound level checks. Wide Frequency Range: Frequency response from 31.5Hz to 8kHz, ensuring versatile use across different environments and applications. Portable and Lightweight: Compact and lightweight design, powered by 3 AAA batteries (not included), for easy portability and on-the-go use. Convenient Features: Includes Auto Range, Max Value Hold, Frequency Weighting A, and Auto Backlight for enhanced functionality. Perfect for industrial noise control, neighborhood monitoring, audio calibration, and health and safety assessments.