1. This product features ultra-high stability and high-sensitivity design, with a 360-degree all-around detection surface. 2. LCD display shows object detection distance, with sound and vibration alarm alerts. 3. Designed for easy detection of prohibited items, user-friendly with included hanging accessories. 4. The device requires no adjustment, is simple to operate, and includes a low-voltage indication function. Product parameters: Sensitivity detection distance for one-yuan coins: 3-5cm; equipped with under-voltage indication. Detection methods: vibration, sound, display. Power supply: 9V 6F22 battery (battery not included). Working environment: temperature -20C to 60C. Material: plastic. Color: Black. Package Contents: 1 x Metal Detector Only the above package content is included; other items are not part of this package. Note: Due to light reflection and differences in display screens, the color in the image may slightly vary from the actual item. Measurement error allowance: +/- 1-3cm.