MF12-DK1 Macro Flash Kit Including 2 x MF12 Off-Camera TTL Flash Light + 1 x Flsh Trigger + 8 x Adapter Rings + 1 x Mounting Ring + 2 x Diffusers + 2 x Cold Shoe Mounts

--MF12 Built-in Lithium Battery: 3.7V/1700mAh Guide No.(1/1 output): GN=16.1(+0.1) Flash Power: 12W Output Level: 8 levels: 1/128-1/1 Brightness of LED Modeling Lamp: 1-10 Levels Display: OLED Display Optical Flash: S1 Secondary Optic Triggering/ S2 Secondary Optic Triggering with Anti-preflash Flash Mode: TTL Autoflash, M manual flash Flash Duration: 7/1200s-1/34000s 2.4G Wireless Transmission: ON/OFF Channel: 32 channel:1~32 Group: 5 group: A/B/C/D/E ID: OFF/01-99 Transmission Distance: 30m Type-C Power Charging: 5V/2A Full Power Flashes: Approx.500 Recycle Time: Approx.0.01-1.7s Battery Level Indication: Battery level indicator shows on the upper right corner of the display Power Saving: 30min/60min/90min(It will automatically power off if it is unattended over 30min/60min/90minutes. Turn off the auto power off mode,power saving function is invalid.) 2.4G Wireless Frequency Range: 2413.0MHz-2464.5MHz Dimension: 81 * 76.5 * 64.3mm Weight: 144g --XProllS+ Compatible cameras: Sony cameras(TTL autoflash)/ Cameras that have PC sync socket Power supply: 2 * AA batteries TTL autoflash: Yes Manual flash: Yes Stroboscopic flash: Yes High-speed sync: Yes Second-curtain sync: Yes Flash exposure compensation: +3EV(exposure value) adjustable in 1/3 EV increment Flash exposure lock: Yes Focus assist: Yes Modeling lamp flash: Control the modeling lamp flash by flash trigger Beeper: Control the Beeper by flash trigger ZOOM Setting: Adjust the ZOOM value by the transmitter from AUTO or 24 to 200 TCM function: Transform the TTL shooting value into the output value in the M mode Firmware upgrade: Upgrade through the USB Type-C port Memory function: Settings will be stored 2 seconds after last operation and recover after a restart Display: Large LCD Panel, backlight ON or OFF