Features: Sensitive Sound Sensitivity: Designed with high-sensitivity components to enhance sound detection and o clarity. Provides a more convenient user experience. Easy to Operate: Compatible with various surfaces such as wood, coaxial cables, windows, doors, and metal plates. Offers broad compatibility for different applications. Powerful Functionality: Compact and complete design with charging port, headphone jack, and volume control knob. Thoughtful layout for easy operation and adjustment. Excellent Sound Clarity: Suitable for indoor and outdoor use, equipped with a built-in lithium battery for easy operation and portability. Wide Application: Ideal for water pipe leak detection, underfloor heating inspection, and water body detection. Compatible with various pipeline materials, floors, and piping systems. Specifications: Current Consumption: 10mA Battery: Built-in 9V battery Working Temperature: -20°C to 50°C Sensitivity of Measuring Element: -70dB Maximum o Magnification: 20000X Material: ABS + Electronic Components Size: approx. 61x35mm Color: Black Quantity: 1 Set Notes: Please allow 0-1cm error due to manual measurement. Ensure you are comfortable with this before purchasing. Due to differences in monitor displays, the image may not reflect the actual color of the item. Thank you. Package Includes: 1 x Water Pipe Leak Detector 1 x Earphone 1 x Detector Head 1 x Data Cable (Other accessories shown in the image are not included)