Feature 1GOOD PERFORMANCE: The metal detector has adjustable sensitivity, large detection area, fast speed, high sensitivity, and can detect small objects. 2DOUBLE ALARMS: With controllable sound and vibration effects, it can quietly identify potential hazards, simple and convenient in operation. 3280MAH BATTERY: The detector is equipped with 280mAh large capacity rechargeable battery, which can work continuously for more than 40 hours. 4WITH INDICATOR: The metal detector is equipped with indicator to detect the size of the object and display it in different colors (green to red). 5APPLICABLE PLACES: Used in railway stations, border defense, schools, factories, airports, and for detecting electronic products, metal objects, etc.SpecificationItem Type: Metal DetectorBattery: 1 x 6F22 280mAh rechargeable lithium battery (battery included)Battery Life: Continuous operation for more than 40 hoursAlarm Mode: Vibration and buzzer double alarmMeasuring Range: Within 12cm / 4.7inDetection Distance: 1. Pin: Approx. 30-50mm / 1.2-2in2. Type 64 Pistol: Approx. 200mm / 7.9in3. 6in Dagger: Approx. 250mm / 9.8in4. 20mm Diameter Steel Ball: Approx. 120mm / 4.7inAlarm Indication: Flashing Green LED: Power onFlashing Red LED: Target detectedContinuous Yellow LED: Low voltage indicationMetal Indicator LED: The indicator light changes from green to red due to different sizes of detected objectsAlarm Signal: Sound Mode: Buzzer and red LED, metal indicator LEDVibration Mode: Vibration and red LED, metal indicator LEDPower Consumption: Maximum 270MWWorking Frequency: 22KHZStandby Current: <5MAWorking Temperature: -10-65Reset Time: 0.5s, Automatic .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Metal Detector1 x Battery