The Bounty Hunter (R) HandyMan Nail Finder (R) is a hand-held metal detector that detects all types of metals. This metal detector provides a low detection mode that adjusts for unwanted objects. The interference elimination feature minimizes electromagnetic interference from other devices. The Handy Man operates on a 9-volt battery and features a comfortable grip. FEATURES: Detects all types of metals Low detection mode adjusts sensitivity for unwanted objects Interference elimination minimizes electromagnetic interference from other devices High pitch, audio alert sound and silent vibration alert Comfortable grip Quick change battery compartment Runs on a 9-volt battery (not included) Low battery LED indicator