Model Number: YONGNUO YN622C II (2015) Brand Name: YONGNUO Key Specifications/Special Features: Supports "622" communication mode,"560-RX" communication modeCompatible flash mode: E-TTL (II)/ Manual/MultiCompatible shutter sync: 1st curtain, 2nd curtain, high speed sync (HSS/FP), max 1/8000s sync speedControl remote flash using camera's flash control menu screen (remote control mode)Support E-TTL/manual/multi flash mode mix using (mix control mode)Flash on hot-shoe of transmitter supports ETTL
Support flash exposure compensation (FEC)

Support flash exposure bracketing (FEB)

Support flash exposure lock (FEL)

Support modeling flash

Support E-TTL group ratio (ALL/ A:B/ A:B C)

Support manual/multi group (ALL/ A:B/ A:B:C)

Support flash zooming (auto, manual)

Support AF assist beam emitter(AF Lamp)

Support PC port triggering strobe flashes and support 1st, 2nd curtain/HSS (super sync)

Support LCD live view triggering

Support high-speed continuous shooting trigger

Settings saved automatically

Compatible with all YongNuo/Canon EXII series flashes

Support single-contact of camera & flash triggering (max sync speed is 1/250s)

Quick lock design

Supports USB firmware upgrade