This lightweight metal detector is a great way for young explorers to discover common metal objects featuring a sensitivity and volume control the detector emits a beeping sound when close to metal and the flashing indicator lights speed up and change colour so youll be well on your way to detecting some interesting objects size h23 w43cm batteries required 1 x 9v not included plus for ages 8 years and over warnings not suitable for children under 3 years old only for dom