Test 4 types of cables: RJ-45, RJ-11, USB and BNC.Check cabling or patch cable.Tested shielded (STP) or unshielded (UTP) LAN cable.Test umbrellas in USB cable.Can test from two remote points.Beeper provides audible message of test results.The device is located in the main device.BNC termination resistance 25/50 ohms.Right or transition view.Leds indicate connections and malfunctions of wires and pins.RJ-11/RJ-45 are equipped with 50u gold plated.300 feet test distance (RJ-45 / RJ-11 / BNC).Ergonomic portable handheld design.Powered by a 9V alkaline battery.(Not included).Specifications:Cable tested: UTP and STP LAN cable, finished in RJ-45 connectors (EIA/TIA 568); RJ-11 cable with plug, 2 to 6 conductors installed; USB cable with type A flat plug at one end and type B square plug at the other end; BNC cable with connectors.Malfunctions displayed: no connections, shorts, openings and crossover.Low battery power: LED lights up to display low battery: 1 x 9V 6F22 DC alkaline battery (battery not included).Colour: grey.Dimensions: 162 x 85 x 25 mm.Weight: 164 g (battery excluded).Box contents:1 x 4-in-1 network cable tester1 x remote control (USB RJ45 RJ11) (connected to the main device).1 x BNC remote control.1 x Manual