Neewer NW660III 2.4G E-TTL HSS 1/8000s LCD Display Wireless Master/Slave Flash Speedlight for Canon 7D 70D T5i/700D T4i/650D T3i/600D T2i/55OD T1i/500D SL1/100D and All Other Canon DSLR Cameras Large-size LCD display. Powerful flash with strong Guide Number:58m(ISO 1,18mm) Built-in 2.4G ultra-long-distance wireless flash system with High Sensitivity Wireless Triggering Sensor. Global free application for digital FSK 2.4GHz & Ultra-long-distance wireless transmission module, communication distance up to 5 meters. Abundant flash mode: E-TTL, Master, Slave, S1/S2, Multi,M. It also supports HSS, Rear-curtain Sync; FEC,FEB, FE-Lock,High-speed Burst for 12 photos a second! There's even power saving mode and over heat protection to provide better protection to your flash. New Power Zoom Function: By pushing the button on the speedlite, it can make the flash covered length range from 18mm to 18mm.