Features: Built-in intelligent induction coil can immediately and accurately detect metal substance, and automatically adjust the detection distance based on different objects. Fitted with two alarms: red LED indicator and buzzer alarm. With 180foldable head, flexible to use in various scenarios, meeting different needs. Adopt intelligent power-saving technology, providing long-lasting use after one charge. Handheld design, with simple operation, can be used for public security in airports, railway stations, docks, prisons, customs, etc. Specifications: Material: ABS Power Supply: 9V 6F22(Not included) Feature: Buzzer, LED Alarm Package Weight: 270g / 9.52oz Package Size: 26.5*14.6*5cm / 10.43 * 5.74 * 1.96in Packing List: 1 * Metal Detector 1 * Lanyard 1 * User Manual (English)