You Can Use This Portable Metal Detector To Detect The Existence Of Small Metal Objects. This Metal Detector Is A Valuable Aid In The Process Of Searching The Body For Offensive Objects In Crowd Control, Airport And Border Security, Checking Packages For Metal Objects And Anywhere Hidden Metal Needs To Be Detected Also Used To Search For Coins, Relics, Jewelry, Gold And Silver Anywhere, Which Can Remind You Of The Presence Of The Metal Object And Let You Know The Location Of It With Sound And Vibration Alarm. Features:Detect Metal Objects In Airports, Stations, Docks, Customs And Border Defense For Security Inspection.Provides Inspection Precise Metal Safety With Adjustable Sensitivity.Three Colors Of Indicators, Green Light For Power, Yellow Light For Low Battery, Red Light For Metal Detection Alarm.Easy To Use With 2 Alternative Alert Modes Of Audio Signal Indicator And Vibrate Indication.Portable And Lightweight And Easy To Carry With A Wrist Strap.Rechargeable Batteries Socket To Charge The Product After Installing The Rechargeable Batteries.Widely Used For Security Check And Detection Of Prohibited Goods, Electronic Products, Metal Objects In The Station, Border Defense, School, Court And Factory.Features:Color: Dark Gray Material: Abs PlasticAlarm Indication:Bright Yellow Lights: Metal Target Has Been DetectedGreen Light Flashing : Power OnFlashing Red Led Light: Low Voltage IndicatorAlarm Signal:Sound Mode: Buzzer And Red LedsVibration-Mode: Vibrations And Red LedsDetect Objects: Metal (Handgun, Dagger, Steel Ball, Coins)Frequency: 22 KhzPower Consumption: 270 Mw Max.Standby Current: 8MaReset Time: 0.5 Seconds, AutomaticallyDistance Detection:Pin, Iron Nail: 30-60Mm / 1.18-2.36 InchParts: 75-100Mm / 2.95-3.94InchHandgun: 160-180Mm / 6.30-7.09InchSix Inch Dagger: 160-170Mm / 6.30-6.69 Inch20Mm Steel Ball: 20-30 Mm / 0.79-1.18 InchWorking Voltage: 9VBatteries: 1 * 6F22 9V Batteries (Not Included)Working Temperature: -10 + 65 Package Size: 380 * 80 * 38Mm / 14.96 * 3.15 * 1.50InPackage Weight: 250G / 8.82OzPacking List:1 * Metal Detector