Meets NIJ (National Institute of Justice) standards for hand-held metal detectors 360 degree Continuous Detection 10" metal detection probe Detects ferrous and non-ferrous metals 3-way switch (vibration, off, sound) LED indicators for vibration and sound modes Flashing low-battery indicator Durable ABS construction Adjustable detector sensitivity (low, medium, high) Attached wrist strap Powered by one 9-volt Alkaline battery