["brand new and high quality\n\nFeatures:\nSensitive Sound Sensitivity: Align with the high-sensitivity metal of the earphone to improve sensitivity and sound quality. More convenient use experience.\nEasy to Operate: The sound can be made of wood/coaxial, window, door or armor plate. Has good compatibility.\nPowerful Function: The function is compact and complete, with charging hole, earphone hole and up switch knob. Humanized design, easy to use and adjust.\nExcellent Sound Clarity: It can be used anywhere, even indoors or in buildings, and built-in lithium battery, which is easy to operate and carry.\nWide Application: Can be used for pipeline side leakage/floor heating detection/water body detection. Applicable to all kinds of pipeline materials, floors, pipelines, etc.\n\nSpecification:\nCurrent Consumption: 10mA\nBattery: Built-in 9V Battery\nWorking Temperature: -20°-50°\nSensitivity of Measuring Element: -70db\nThe Highest Audio Magnification: 20000X\nMaterial: ABS + Electronic Components\nSize: approx.61x35mm\nColor: Black\nQuantity: 1 Set\n\nNote:\nPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage Includes:\n1 x Water Pipe Leak Detector \n1 x Earphone\n1 x Detector for Head\n1 x Data Cable\n(other accessories demo in the picture is not included!)"]