Feature:1. Easy to Operate: When using the water leak detector get close to a door, window or wall and adjust the volume until you hear a crisp sound, you can easily hear all the sounds in one step.2. Wide Application: The water leakage detector can be used for pipe side leakage, floor heating detection and water ingress detection. Suitable for all kinds of pipes and floors, ducts etc.3. Highly Sensitive: This water leak detector is aligned to the high sensitivity metal of the headphones for improved sensitivity and sound texture and a more convenient use experience. High sensitivity detection of sound from walls, windows, doors or armour plate, with headphones included for clear sound texture.4. Lightweight and Compact: This leak detector is compact and complete with a charging port, earphone jack and upward switch knob.5. Easy to Use: This water leakage detector is user friendly and has a built in battery that can be recharged repeatedly, making it easy to use and adjust.Specification:Item Type: Water Leakage DetectorMaterial: ABSBattery: 1 x 100mAh 3.7V 302025 Lithium polymer battery (included)Measuring Range: Within 1m/3.28ftMeasuring Object: buried pipes in walls, underground pipesOperating Temperature: -10 to 50.Package List:1 xWater Leakage Detector1 x USB Cable1 x Earphone