Features: _x000D_ 1. It can convert sound into electrical signals, process data and displays results on LCD. _x000D_ 2. Mini handheld noise meter with light weight, easy and convenient to use. _x000D_ 3. Designed for sound quality control that measures sound level from 30dBA ~ 130dBA. _x000D_ 4. Equipped with sponge ball to filter out unwanted signals. _x000D_ 5. Great tool for monitoring noise levels in hotels, conference halls, home theater, hospitals, and any other noise sensitive environments. _x000D_ _x000D_ Specifications: _x000D_ Color; White _x000D_ Measuring Range: 30~130dB, 35~130dBC _x000D_ Frequency Weighting Characteristic: A & C _x000D_ Accuracy: 1.5 dB _x000D_ Digit & Resolution: 5 bits & 0.1dB _x000D_ Frequency Response: 31.5Hz ~8.5KHz _x000D_ Time Weighting: FAST / SLOW _x000D_ Sampling Rate: 2times/second _x000D_ Microphone: 1/2inch Capacitance Microphone _x000D_ Power Supply: DC 6V 100mA Adapter or 4pcs 1.5V AA Batteries (NOT included) _x000D_ Dimension: 256*70*35mm / 10.08*2.76*1.38in _x000D_ Weight: Approx. 816g _x000D_ _x000D_ Package List: _x000D_ 1x Digital Noise Meter (Batteries is NOT included) _x000D_ 1x Output Line _x000D_ 1x Windproof Ball _x000D_ 1x Manual _x000D_ 1x Box