Although this item is unopened, it has been handled by someone else, and its operation has not been confirmed, so it is listed as "Like New." The set includes the main unit, charging cable, instruction manual, and case. Small accessories such as batteries are not included. The instruction manual is only in Chinese and English and does not support Japanese, so you will need to check the operation using the manual from the internet. Please be aware. Digital Tester Household Noise Tester TA Professional Sound Detector Z Weighted Decibel Meter TA652B Sound Level Meter Professional Sound Level Tester Industrial Volume Detector For Home Workspace 30-130dB Data Logger Sound Level Meter Noise Analysis Equipment Noise Control Equipment Noise Home Frequency weighting mode: A/C/Z weighting mode measurement is possible, and it can be connected to a frequency analyzer or XY axis recorder for statistical analysis of data. High-precision microphone: High-sensitivity 1/2 inch condenser microphone with high precision, high sensitivity, and fast instantaneous response characteristics. Data recording: The host can record and store 1999 groups of data. The data recorded by the host can be exported and generated by communicating with the upper computer software via the USB interface. VA HD Color Screen Display: VA true color screen display with backlight. Display screen size: 53 x 44mm. Dual power mode: There are two power modes: 3 x 1.5V AA (LRO6) batteries and a USB interface.