SpecificationsModel : AD300ProWreless Slave Unit Mode: Radio Transmission Mode(Compatible with Canon, Nikon, Sony, Olympus, Panasonic FUJIFILM and Pentax cameras)Flash Mode: Wireless Off M/Multi Slave Unit of Radio Transmission TTL/ M/MultiCompatible Cameras under Radio Transmission(as slave unit) : Canon EOS cameras (X1T-C as master unit) Nikon cameras (X1T-N as master unit) Sony cameras (X1TS as master unit) FUJIFILM cameras (X1T-F as master unit) Olympus cameras (X1T-O as master unit)Flash Duration Time t0.1(aporox): 1/220s - 1/10200sPower: 300WsPower Outout: 9 steps: 1/256-1/1Multi Flash: (Times: 90; Hz: 99)Flash Exposure Compensation(FEC) : Adjust via the 2.4G remote control Sync Mode: HSS(up to 1/8000s). First-curtain sync,Second-curtain syncDelay Flash: 0.01-30s Mask/Fan/Beeper: IncludedModeling Light (LED): 12Ws; Color temperature: 3000K-6000K+500K: Brightness:1-10 stepsOptic Slave Flash: S1/S2Flash Duration Indication: Included.Wreless Flash (2.4G wireless transmission)Wireless Flash Function: Slave, OffControllable Slave Groups: 5 Groups: A,B. C. D ETransmission Range(approx): 100mChannels: 1-32ID: 01-99Power Supply: Lithium Battery (14.4V/2600mAh)Flash Times in Full Power: 320Recycling Time: 0.01-1.5sBattery Level Indicator: IncludedEnergy-saving: Power off automatically after 30mins(adjustable) of idle operationSync Triggering Mode: 3.5mm sync cordColor Temperature: 5600K200K Stable Color Temperature Mode: Assure 100K over the entire power rangeDimensions: 190x100x90mmNet Weight:1.25Kg(including battery)