Fluke LinkIQ FMC-1G Testing Device - Wireless Connectivity Testing, Network Testing, Network Troubleshoot, Cable Testing - Network (RJ-45) - SFP - Optical Fiber, Twisted Pair - Gigabit Ethernet - 1000Base-SX, 1000Base-LX - 1Number of Batteries Supported - AA - Battery Included - Battery Rechargeable - Lithium Ion (Li-Ion):