Fluke LinkIQ LIQ-DUO/FPC3 Testing Device - Cable Testing, Wireless Connectivity Testing, Network Testing, Network Troubleshoot, PoE Testing, Wiremap, Cable Fault Testing - Network (RJ-45) - Network (RJ-11) - Twisted Pair - 10 Gigabit Ethernet - 10GBase-T, 10Base-T - 1Number of Batteries Supported - AA - Battery Included - Battery Rechargeable - Lithium Ion (Li-Ion):