Profoto continues to impress and surprise us, this time with an enhanced version of the B1 battery-powered monolight, the B1X, introduced with the B1X 500 AirTTL 1-Light To-Go Kit with an improved battery that will give you an impressive 325 full-power flashes. All of the familiar professional and convenience features we've come to expect from Profoto are onboard. The B1X has the same dense, durable polymer housing, integrated 77-degree reflector, built-in receiver compatible with Air Remote TTL remotes and intuitive highly visible controls and display.