Model:MD-3003B Power : 9V(6F22) Operate Frequency : 22KHz Operate Current : < 50mA Operate Voltage : 7V-9V Indicator Visual: Red and Green LED Indicator Visual: Sound: Speaker or Earphone (Earphone not included) Function : Metal Detection Control : On/Off Control Control : Sensitivity Control Sensitivity : 15mm at Pin Sensitivity : 35mm at USD 25 Cent Export Packing : 25 Pieces Per Carton 0.07CBM Export Packing : (0. 54?.30?.44m) Export Packing : N.W 7.5KG Export Packing : G.W 13.5KG Dimension : 395(L)?5(W)?5(H)mm Weight : 280G Color : Black Other attachment : Holster ,color box