High-Sensitivity Ear Listening Device: Versatile Sound Detection for Professionals Versatile Applications: This ear listening device is perfect for detecting pipeline side leaks, floor heating issues, and water exploration. It is suitable for use with various pipeline materials and can efficiently detect sounds through different surfaces, including ground, walls, and more. Enhanced Sensitivity: Equipped with a high-sensitivity metal probe and earphones, this wall microphone offers superior sound detection capabilities. Its sensitivity ensures that you can capture even the faintest sounds, making it a reliable tool for precision work. Compact Design with Full Functionality: The device features a compact design that includes a charging hole, earphone hole, and an easy-to-use upside switch knob. Its complete functionality ensures that all your sound detection needs are met in one portable unit. Simple Operation: Designed for ease of use, this sound detector can effectively transmit sound through wooden or brick walls, windows, doors, and even armor plates. Its straightforward operation makes it accessible for both professionals and beginners. Portable and Convenient: Featuring a built-in lithium battery, this voice bug is not only easy to use but also easy to carry. Its portability ensures that you can take it anywhere, making it a perfect companion for on-the-go sound detection tasks. Optimize your sound detection capabilities with our High-Sensitivity Ear Listening Device. Combining portability, advanced sensitivity, and versatile functionality, this device is an essential tool for professionals who require reliable and detailed sound analysis in various settings. Whether for leak detection, exploration, or other applications, experience enhanced accuracy and convenience with this powerful sound detector.