Canon Speedlite 600EX II-RT

2.4 GHz Wireless Radio Transmission
Compatible with Canon E-TTL / E-TTL II
Guide Number: 197' at ISO 100 and 200mm
Zoom Range: 20-200mm (14mm with Panel)
Tilts from -7 to +90°
Rotates Left & Right 180°
1.1-1.5x Improved Continuous Shooting
High-Speed, 1st & 2nd Curtain Sync
Bounce Adapter & Hard Color Filters
Runs on 4 AA Batteries