Specification: Item Type: Water Pipe Leak Detector Material: ABS + Metal Charging Method: Power Output (DC5V 300mah) Battery Capacity: 210mah (Shipped With Built-In Battery) Battery Type: 3. 7V Lithium Battery Charging Time: 2-3 Hours Sound Collection Time: About 8 Hours, Current About 25mah Continuous Playing Time: About 10 Hours, Current About 20mah Memory: Support 32G Memory Card (Not Included) Probe Sensitivity: -70Db The Audio Magnification: 20000 Times Penetration: Water Pipe/Cement Pipe/Steel Pipe Answering Method: Earphone, 16 Ohm Speaker Can Be Connected Package List: 1 x Water Pipe Leak Detector, 1 x Earphone, 1 x Probe, 1 x Probe Needle, 1 x USB Cable, 1 x Manual