Adjustable-Height Metal Detector For Children

Product information:
Specifications: Red (batteries not included), Green (batteries not included)
Product Parameters:
Power Supply: DC 9V
LED Screen: 2 inches
Current: 30 mA
Sensitivity: 5 ± 1 cm (tested with a one-yuan coin)
Frequency: 3 kHz
Power: 270 mW
Search Coil Size: 6 inches (15.2 cm)
Temperature Range: -20°C to 60°C