[High Sensitivity Detection]Instant detection of sound from walls, windows, doors or armor panels, with headphones included, with clear sound quality. [Easy Operation] to the door, , wall, adjust the volume until you hear a sound, you can easily listen to all sounds in . [Strong practicability] It is suitable leakage detection of various construction pipelines. Detect leaks in pipes by amplifying the sound, and with headphones you can adjust the sound level. [Easy to use]Built-in 3.7V lithium battery, which can be recharged repeatedly, easy to use. Size: 66 x 35mm Weight: 66 grams Measuring range: within 1m/3.28ft Measurement object: underground pipes in the wall Working temperature: -10~50 Power supply: built-in lithium battery Model Number: Water pipe detector color:As shown Material:plastic Package Contents: 1 x 1 x Headphone 1 x usb cable Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.