Minelab Pro-Find 25 Pinpointer Metal Detector 9V Battery Powered with Built in LED Flashlight and included Holster For greater accuracy the PRO-FIND 25 indicates the depth of buried targets with a proportional vibration and audio response Two modes Audio & Vibrate or Vibrate Only for silent searching Submersible probe end The whole pinpointer can be washed under running water Auto power off after eight minutes eight minutes of inactivity LED Light for low light conditions and in deep holes VLF Very Low Frequency is a standard single frequency sine wave transmission technology gives greater noise immunity to variable ground conditions The advanced design of the PRO-FIND 25 removes false signals and noise DIF technology eliminates interference with an operating metal detector