Feature: 1. Wide Uses Jack: 3.5mm earphone jack can be connected to display spectrum, recording pen, transmitter, wireless equipment, etc. (not included), but also can be inserted into the dual channel lead for direct recording. 2. Great Sound Quality: The high sensitivity sensor head adopts new components and advanced technology, so that the penetration force is increased several times, and the sound quality is greatly improved. 3. Long Battery Life: The wall pipe leakage sound amplifier has a long battery life, with an for Android charging interface, and the built in battery can be recharged repeatedly. 4. High Accuracy: The pipe leak ear listening device adopts advanced technology to effectively filter the noise and detect the situation of the water outlet faster. 5. Multipurpose: Wall pipe leak microphone listen detector can detect heating pipes, fire pipes, water pipes, floor heating pipes, abnormal noises in cars, household pipes, etc. Specification: Item Type: Water Pipe Leak Detector Material: ABS Usage: It can detect heating pipes, fire pipes, water pipes, floor heating pipes, abnormal noises of cars, household pipes Power Consumption Current: 12mA Battery Capacity: 3.7V 100mAh Lithium Battery x 1 (Built in) Working Time: 5-7 Hours Probe Sensitivity: -60 DDB Maximum Audio Amplification: 13000X Penetration: Water Pipe, Cement Pipe, Steel Pipe. Package List: 1 x Water Pipe Leak Detector1 x USB Cable1 x Earphone1 x Manual Note: