Shooting frequency: 6.99KHz Signal frequency: 437KHz Visual: Lever Meter Indicators: Sound:2 Speaker or Earphone(Earphone not included) Disc: Ground BalanceControls Distinguish Ferrous and Non-Ferrous Metal Disc Control; Ground Balance Control Tune Control; Sensitivity control Discrimination Control Zeroing Control Working electric current: 300mA MAX at MAX Volume Power supply: 8pcs 1.5V batteries; Detecting Depth(Max): 3-5m Sensitivity: 35cm for a US(25cent)quarter with meter Indication at min, discrimination Accessories: battery box and battery bag, two coil(large and small); Gross weight: 3.2kg Color: black