1、It can convert sound into elecical signals, process data and displays results on LCD. 2、Mini handheld noise meter with light weight, easy and convenient to use. 3、Designed for sound quality conol that measures sound level from 30dBA ~ 130dBA. 4、Equipped with sponge ball to filter out unwanted signals. 5、Great tool for monitoring noise levels in hotels, conference halls, home theater, hospitals, and any other noise sensitive environments. bFeatures: MsoListParagraph style=:12.75pt;-12.75pt; 1. It can convert sound into elecical signals, process data and displays results on LCD. MsoListParagraph style=:12.75pt;-12.75pt; 2. Mini handheld noise meter with light weight, easy and convenient to use. MsoListParagraph style=:12.75pt;-12.75pt; 3. Designed for sound quality conol that measures sound level from 30dBA ~ 130dBA. MsoListParagraph style=:12.75pt;-12.75pt; 4. Equipped with sponge ball to filter out unwanted signals. MsoListParagraph style=:12.75pt;-12.75pt; -12.75pt;5. Great tool for monitoring noise levels in hotels, conference halls, home theater, hospitals, and any other noise sensitive environments. bSpecifications: Color; White Measuring Range: 30~130dB, 35~130dBC Frequency Weighting Characteristic: A & C Accuracy: ±1.5 dB Digit & Resolution: 5 bits & 0.1dB Frequency Response: 31.5Hz ~8.5KHz Time Weighting: FAST / SLOW Sampling Rate: 2times/second Microphone: 1/2inch Capacitance Microphone Power Supply: DC 6V 100mA Adapter or 4pcs 1.5V AA Batteries bNOT included Dimension: 256*70*35mm / 10.08*2.76*1.38in Weight: Approx. 816g bPackage List: 1x Digital Noise Meter Batteries is NOT included 1x Output Line 1x Windproof Ball 1x Manual 1x Box