A9LB Water Leakage Underground Water Pipe Leak Monitor Detector w/ Earphone and high qutyFeatures:Sensitive Sound Sensitivity: gn with the high-sensitivity metal of the earphone to improve sensitivity and sound quty. More convenient use experience.Easy to Operate: The sound can be made of wood/coaxial, window, door or armor plate. Has good compatibility.Powerful Function: The function is compact and complete, with charging hole, earphone hole and up switch knob. Humanized design, easy to use and adjust.Excellent Sound Clarity: It can be used anywhere, even indoors or in buildings, and built-in lithium battery, which is easy to operate and carry.Wide Application: Can be used for pipeline side leakage/floor heating /water body . Applicable to all kinds of pipeline materials, floors, pipelines, etc.Specification:Current Consumption: 10mABattery: Built-in 9V BatteryWorking Temperature: -20°-°Sensitivity of Measuring Element: -70dbThe Highest Audio : 20000XMaterial: ABS + Electronic ComponentsSize: approx.61x35mmColor: BlackQuantity: 1 SetNote:Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Includes:1 x Water Pipe Leak Detector1 x Earphone1 x Detector Head1 x Data Cable(other acceories demo in the picture is not included!)