Metal Detector Scanner

Specifications:
Detection sensitivity: Diameter 2.5mm Ball
Power supply: 9 volt battery (not included)
Power consumption: 270mW
Operating frequency: 22KHz
Working current: less than 50mA
Working temperature: -5 -55 degrees Celsius
Size: 410 x 85 x 45mm
Indicator - Visual:Red / Green LED and Sound: Speaker
Vibration Control:On/Off Switch

What's in the box
1 x Metal Detector Scanner