Measuring range: 30dBA~130dBAAccuracy: ±1.5 dBFrequency range: 31.5Hz~8.5KHzFrequency weighting: ADigital Display: 4digitsResolution: 0.1dBSample rate: 2 times/secondMicrophone: 1/2 inch electret condenser microphonePower supply: 9V Battery(Not included)Operating condition: 0~40 10~80%RHStorage condition: -10~60 10~70%RHThe appearance is small and exquisite, and the color is made of polymer material, which is strong and durable. Small and portable.Large screen design, LCD backlight, simple and convenient.Backlight design.Auto power off.Max reading hold.Package Includes:1pc Digital Sound Meter1pc User Manual1pc Sponge BallNote:1. Please Allow 1-3cm Differs Due To Manual Measurement.2. Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.Please refer to the received product. Thank you for your understanding.Portable and easy to use.