Quickly find metal, wood, and AC wires hidden in walls, floors, and ceilings to avoid hazards when installing TVs, cabinets, garage shelves, and more. No need to hire an electriciantest with a stud finder yourself. Features: - Color: Black - Material: Plastic and metal - Size: 15.5 x 6.9 x 3 cm - Detects metal, studs, and AC wires inside walls - Sound alarm and analog display indicate detection of metal, wood, or AC wire - Capable of detecting studs in the same object - Easy to useno professional experience required Note: Due to lighting effects, monitor brightness, and manual measurement, there may be slight variations in color and size between the photo and the actual item. We appreciate your understanding.