Titan HIGH-RATE Handheld Security Bounty Hunter Metal Detector Wand & Holster hand held scanner Two Indicators : You can choose either an audible tone or vibration Highly Sensitive: Can detect a hand gun from 11 inches away, a pen knife from 6 inches away, and a razor blade from 4 inches away. Adjustable Sensitivity: The sensitivity can be adjusted with the turn of a switch. TITAN BRAND - TITAN TRUSTED - TITAN APPROVED