Metal detector with LEDs and sound alert. Waterproof search coil. Adjustable stem. Ideal for children. Power supply 9 V DC. With this metal detector from Velleman, you can find small and large metal objects underground. The device is lightweight, features a sensitivity control, and is easy to calibrate. An ethical code in favor of all treasure hunters. Remember that your behavior could serve as an example for other treasure seekers. Follow these basic rules when using the metal detector: Always ask for permission before you start searching. Always respect the rights and property of others. Always be aware of possible national, regional, and local laws regarding treasure hunting. Do not destroy items of historical or archaeological value. If you are unsure about an object, contact a museum or historical society in your area. Leave the searched area and vegetation in their original state. Fill in the hole afterward. Use the detector only in safe locations. Dispose of found metal scraps only at designated waste sites. Do not leave it for other treasure hunters.