Wireless E-Ttl Flash Trigger Transceiver (YN-622 C)

Key Specifications/Special Features:
Compatible flash mode: E-TTL II/manual/multi
Compatible shutter sync: 1st curtain, 2ND curtain, high speed sync (HSS/FP) maximum 1/8000s
Control remote speedlites using camera's build-in flash menu
PC port can output 1st/2ND/HSS signal to trigger studio flash
Supports flash exposure compensation (FEC)
Supports flash exposure bracketing (FEB)
Supports flash exposure lock (FEL)
Supports flash zooming (automatic, manual)
Supports modeling flash
Supports E-TTL group ratio (ALL/A: B/A: B C)
Supports manual/multi group (ALL/A: B/A: B: C)
Supports live view triggering
Supports assist focus lamp
Supports high-speed continuous shooting trigger
Speedlites on hot-shoe of transmitter supports ETTL
Compatible with ALL YongNuo/Canon EXII series speedlites
Settings saved automatically
Support single-contact camera & speedlite triggering

Specifications:
System type: FSK 2.4GHz
Distance: 100m
Channel: 7
Flash mode: E-TTL (II), manual flash, multi flash
Sync mode: 1st certain, 2ND curtain, high-speed sync
Groups: 3 (A/B/C)
Sync speed: 1/8000s
Applicable battery: 2x AA battery
Standby time: 60 hours
Dimensions: 89.5 x 53 x39mm
Weight: 78g

Compatible ETTL flash list (supports wireless remote control though camera menu): Canon 600EX (RT)/580EXII/430EXII/320EX 270EXII, YONGNUO YN565C/YN468IIC/YN467IIC/YN465