The Cable Techniques SMARTCAP-PT4L Smart Battery Adapter Cap to Four Pigtail Leads houses a rechargeable smart battery (available separately) and is terminated with four pigtail leads for DIY connector install. It is used to deliver DC power to a variety of audio gear like Zaxcom, Sound Devices, and others. The adapter features a 24" cable and is compatible with smart batteries from Inspired Energy, Audioroot, Sound Devices, and Remote Audio Hi-Q. To ensure you never run out of power at the wrong time, the SMARTCAP-PT4L passes telemetry data from the battery, including battery-life status.