... GAUSS technology that is both an audio and visual detector. This metal detector was first used in the field in 1984 and ... cell battery with charger, transmitting antenna, receiving rods and receiver with belt clip, headphones and user manual all inserted into ... trim, a handle and two locks, Head Phones, Enhancer, Belt Receiver, Antenna (Receiving) Rods, Battery Charger, Antenna (Sending), Mark Flag, ...