TREND Networks Copper and Fiber Network Transmission Tester - Cable Testing, Twisted Pair Cable Testing, Cable Tracing, Network Testing, Cable Fault Testing, PoE Testing - USB - Network (RJ-45) - Twisted Pair - Gigabit Ethernet - 10/100/1000Base-T - Battery Included - Battery Rechargeable - Nickel Metal Hydride (NiMH):