The sound level meter does not need to be touched, it can measure sound quality in various environments and display test results quickly and accurately. The sound level meter uses professional sensors from high precision offering excellent sensitivity and precision. Its performance is stable and reliable. Comes with a compact and lightweight design, designed to fit comfortably in your palm, convenient to carry. Sound level Test yourself allows to take note of the minimum and maximum Decibels in your surroundings at Any Given Time Frame. High precision with stable performance and high accuracy, perfect for measuring sound level. p Features: Color: Black and Red Material: ABS plastic Frequency weighting: A weighting Digital Resolution: 4 digits and 0.1dB Measuring range: 30 ~ 130dBA Frequency range: 31.5 Hz to 8.5K Hz Microphone: 1/2 inch Electret Condenser Microphone Power Supply: 2 x 1.5V AAA battery (not included) Item size: 205x55x30mm / 8x2.15x1.17in Weight: 98g / 3.43oz Package information: Package weight: 247x92x52mm / 9.63x3.59x2.03in Package size: 240g / 8.4oz General Box Package Package Included: 1 x Sound Level Meters 1 x User Manual / p 1 x Pouch Notes: Do not use the device at high temperature and humidity environment. Note: It does not include other things, the color is based on the first picture, and other pictures only show the effect Due to the differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow deviation. Thank you!