Yongnuo YN686EX-RT Lithium TTL Speedlite for Canon Cameras

Product Highlights
Canon-Compatible 2.4GHz Radio System
Runs on Rechargeable Li-Ion Battery Pack
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°
Wireless Master/Slave TTL Functionality
Recycle Time: 1.5 Seconds at Full Power
High-Speed, 1st and 2nd Curtain Sync.