Fluke LinkIQ LIQ-DUO-IE Testing Device - Cable Testing, Wireless Connectivity Testing, Network Testing, Network Troubleshoot, PoE Testing, Wiremap, Cable Fault Testing, Connectivity Testing - USB - Network (RJ-45) - Twisted Pair - 1Number of Batteries Supported - AA - Battery Included - Battery Rechargeable - Lithium Ion (Li-Ion):