Features 1、The detection distance is long, and the detection distance of a RMB coin is about 8 cm. 2、IP68 waterproof rating, the metal detector provides underwater searching capabilities up to 35m / 114.8ft. 3、Convenient to carry with lanyard and wrist strap. Ergonomic body of the detector offers stability and comfort. 4、Metal detector designed to realize the conversion between three mode‑ vibration mode, sound mode, vibration and sound mode. 5、Suitable for the detection of gold and silver in fish pond, rivers, and deep seas, and also suitable for safety inspections. Specification Item Type: Metal Detector Material: ABS Color: Green Model: HS-07 Waterproof Detection Disc Diameter: 12cm / 4.7in Battery: 9V 6F22 x 1 (not included) Application: Underwater treasure hunting, public security detective Tuning: Automatic Detection Mode: Sound and vibration (default), sound, vibration Control Method: Power switch Detection Range: 0-40cm / 0.0-15.7in Package List 1 x Metal Detector (Battery Not Included) 1 x Lanyard 1 x Wrist Strap 1 x Instruction Manual