Features: Special instrument for searching and confirming the location of water pipe leak. Detect pipe leakage by amplifying the sound with headphones, you can adjust the sound level. With dual probes, including circular probe and needle probe to cope with different situations. Made of high-quality ABS and metal, wear-resistant and durable, not easy to damage. Plug Type:EU Plug,it applies to Indonesia, Germany, , Spain, and so on Special instrument for searching and confirming the location of water pipe leak. Highly sensitive, slowly adjust volume so as not to discomfort your ears. With dual probes, including circular probe and needle probe to cope with different situations. Small size, premium quality, convenient to . Small size, -in rechargeable lithium battery, convenient to carry and measure. Specifications: Material: Plastic+Metal Color as shown Input: AC 100-240V 50/60Hz 150mA Output: DC 5V 1000mA Working Current: 10mA Maximum Audio Amplification Factor: 20,000X -in Battery: 3.7V 300mAh Lithium Battery Item Size: 6 x 4 x 2cm / 2.4 x 1.6 x 0.8in Item Weight: 208g / 7.3oz Package Contents: 1 x Detector Sensor 1 x Adaptor 1 x Circular Probe 1 x Needle Probe 1 x USB Cable 1 x Earphone Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.