LCD display screen: it can show the probable type of metal with an , the depth of target, DISC range, the level of SENS with segment, the operating mode, battery condition, and volume level. Three tone: there are low tone: medium tone, and this 3 distinctive tones for different kinds of metal type, which easier to identify the metal being detected. Operation mode: with ALL METAL, PINPOINT and DISC 3 operation modes for searching a lot of kinds of metal, at the same time ignoring junk metal and find valuable items, or pinpointing the accurate location of the target detected. 3.5mm headphone Jack: you can insert the stereo earphones (not included) with 3.5mm plug into the earphone jack, which let you to operate it without disturb. Waterproof search coil: enable you to search metal objects under shallow water, but please note that the control housing is not waterproof. Operating mode: ALL METAL, DISC, PINPOINT Tone: three tones (low, medium, high) Battery: 2 x 9V 6F22 battery (not included) name: Metal Detector Headphone jack: 3.5mm Control unit size: 131 x 92 x136mm / 5.16 x 3.62 x 5.35inch Search coil diameter: 245mm / 9.6inch Adjustable height of detector: 1080-1340mm / 42.52-52.76inch Color: yellow Material:Aluminum alloy + ABS Package Contents: 1 x Metal Detector Main Unit 1 x Earphone Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.