Features 1、Support for sound and light synchronous alarm or vibration alarm, convenient to use. 2、Suitable for security check at school examination room, station and entertainment place. 3、Support for low voltage indication function, handheld metal detector, easy to carry. 4、High detection accuracy, stable performance and high reliability, practical to use. 5、Made of high quality material, which is aging resistant and durable for long time use. Specification Condition: 100% Brand New Item Type: Metal Detector Material: ABS Detect Sensitivity: Detect RMB one yuan coin, the detection distance is ≥5CM Alarm Mode: Sound and light synchronous alarm or vibration alarm Power Supply: 9V 6F22ND Battery (Not Included) Function: Low voltage indication function Working Current: Sound and light less than 56mA, vibration less than 90mA Product Size: Approx. 35 x 14 x 3 cm / 13.8 x 5.5 x 1.2 in Weight: Approx. 276g / 9.7oz Package List 1 x Metal Detector (Battery Not Included) 1 x English User Manual