Function: Testing 4 types of cables RJ-45, RJ-11, USB and BNC. Try installing the wiring or patch cables. Test shielded (STP) or unshielded (UTP) LAN cables. Test screens in USB cables. Can check from 2 remote points. Beeper provides audible alerts of test results. Remote reader stores in the area. main unit. BNC terminator indications 25/50 Ohm. Straight or cross indications. Indicators indicate wire and pin connections and faults . RJ-11 / RJ-45 are equipped with 50U gold plating. 300 ft test distance (RJ-45/RJ-11/BNC). Portable ergonomic design. Powered by 9V alkaline battery. (Not included) Technical specifications: Cable verified: UTP and STP LAN cables, terminated with male RJ-45 connectors (EIA / TIA 568); RJ-11 cables with male connectors, 2 to 6 wires installed; USB cables with a flat type plug on one end and a square type B plug on the other end; BNC cables with male connectors. Reported faults: no connection, short circuits, opens and crossovers. Low battery indicator: LED indicates low battery charge : 1 x DC 9V 6F22 DC alkaline battery (battery not included). Color: gray Item weight: 164g (battery not included). Package includes: 1 x 4-in-1 network cable tester 1 x Remote socket (USB RJ45 RJ11) (connected to main unit) 1 x BNC Remote Jack