The Geoamp XT Geophone is a high performance unit that allows sounds coming from a pig to be heard from great distances. It has a high gain and low noise operation. The Geoamp XT is compact and light weight making it easy to use. The dimensions of the unit are 5.75 x 2.25 x 1.0 inches. The Geophone kit comes in a rugged carrying case that contains a spike probe, a 50’ cable, and a pair of highly efficient noise reducing headphones. The probe can either be stuck into the ground or put into contact with the pipeline.