Hahnel Modus 600RT MKII SpeedlightThe Hahnel Modus 600RT MK II Wireless Kit for Fujifilm CSCs includes: Modus 600RT MK II Speedlight, Viper TTL Transmitter, 1x HLX-MD1 Extreme Battery, USB powered MD1 Ultra-compact Charger and a USB cable. This wireless speedlight kit features a fast recycle time of 1.5sec, up to 600 shots at full power, up to 1000 shots at 1/2 power, wireless connectivity, a built-in 2.4GHz wireless receiver and transmitter, and compatibility with many other speedlight s through Viper TTL. Use alone or as part of an on- or off-camera speedlight array.Viper TTL Wireless Flash TriggerFull wireless integration with MODUS 600RT & MODUS 600RT MK II- Control up to three groups of flash guns, each group comprising of one or more flash units- TTL & Manual mode- Digital Channel Matching provides reliable connections- Easily adjust mode & values on a group by group- LCD Display indicates zones A, B & C on/off & flash power output- Compatible with original speedlights & MODUS 600RT- Use with MODUS 600RT Speedlight off-camera- microUSB socket for firmware upgradeIn the Box:- MODUS 600RT MK II Speedlight- Viper TTL Transmitter- 1 x HLX-MD1 Extreme Battery- USB powered MD1 MK II Ultra-compact Charger- USB cable