Specifications Color: Black Material: ABS Style: Modern Batteries Required: Yes Detection Range: Around: 1200m/3937ft, Depth: 30m/98.4ft Power Source: 2000mAh Lithium Battery(Included) Display Type: LED Plug: EU Standard Input: AC100-240V, 50-60Hz Output: 12.6V, 1A Transmission Frequency: 5.6-6KHz Signal Frequency: 360-440Hz Detection Type: Gold, Silver, Copper, Diamond Number of Items: 1 Recommended Working Temperature: -5~45°C/23~113°F Charging Duration: 10-12 hours Usage Duration: 4-10 hours (Depending on Whether the Screen is Turned On) Gross Weight: 3.5kg/7.7lbs Handle Length: 12cm/4.72in Screen Size(L*W): 11.5*7.7cm/4.52*3.03in Probe Length: 11.3cm/4.44in Body Size(L*H): 16.2*5cm/6.37*1.96in Package Size: 35*14*32cm/13.77*5.51*12.