Feature: 1. [IP68 Waterproof] With IP68 waterproof rating, the metal detector can operate reliably underwater up to 60 meters. 2. [3 Alarm Modes] The metal detector features sound and light, vibration, and combined sound, light, and vibration alarm modes to indicate metal detection. Alarm intensity increases as you get closer to the target. 3. [Ergonomic Design] Equipped with a 5.9-inch search coil for efficient and accurate metal detection. Integrated LED flashlight provides illumination in low-light conditions. 4. [Dual Button Operation] Handheld design with two control buttons: one for power on/off and one for mode selection, ensuring simple and intuitive operation. 5. [USB Rechargeable] Built-in 1600mAh rechargeable lithium battery allows convenient charging via USB cable. Fully charged battery supports up to 10 days of use. Specification: Item Type: Metal Detector Material: ABS Battery: 1 x 6F22 1600mAh rechargeable lithium battery (built-in) Alarm Mode: Sound and light, vibration, sound light and vibration Measuring Range: Approx. 10-12cm / 3.9-4.7in Protection Grade: IP68 Current: 75mA Power: 375mW Frequency: 3KHz Package List: 1 x Metal Detector 2 x Back Cover Accessories 1 x Lanyard 1 x USB Cable 1 x User Manual