Feature: 1. Impulse induction (PI), this technology allows hunting on the beach in salt water or in any type of soil, including grass, mud, dust, sand, black sand and water. 2. Target distancing, the pulses of vibration increase in frequency as the probe approaches the target precision pinpointing. 3. Compact designs, due to its compact 4‑inch coil and small overall size, vibration suppression, easy to carry. 4. Vibration and light communication, when the target is located, the detector signals with vibration pulses and bright white light flashes. 5. Powerful detector, it can detect various metals such as iron and precious metals such as silver and gold. Through pulse induction, it can transmit vibration and blue pulses to instructions. Specification: Condition: 100% Brand New Item Type: Metal Detector Material: ABS Model: PI750 Detection Method: Pulse Induction Search Mode: Metal Alarm Mode: Vibration and White LED Light Power Supply: 9V 6F22 Dry Battery (Not Included) Full Length: Approx. 43cm / 17in Tip Diameter: Approx. 10cm / 4in. Package List: 1 x Metal Detector (Battery Not Included)1 x User Manual Note: 1. Please allow 0‑2 cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.