YONGNUO YN685 IIC TTL Flash Speedlite For Canon (Black) Features 1. Completely Compatible with YONGNUO YN622C and RF603 Wireless System. 2. Remote Control Off-camera Parameters of Each Group. 3. High Speed Sync (HSS). 4. Supports Firmware Upgrade. 5. Ultrafast Charging Recycle System, supporting External Power Supply. 6. GN60 ISO100,200mm. 7. Support AutoManual Zooming. 8. Two display themes are designed for YN685. 9. Supports Sound Prompt Function, Custom Settings (Fn.) and Auto Save Settings. 10. Equipped with Big Size LCD Display Screen, standard PC Synchronous Interface. 11. Two display themes are designed for YN685II C, it supports numeric theme and classic theme , you can choose the one that is suitable for you. Specifications 1. Product Model: YN685 II (For Canon) 2. Circuit design: Insulated Gate Bipolar Transistor (IGBT) 3. Guide No.: 60 (ISO 100, 200mm) 4. Flash mode: ETTL, M, Multi 5. Trigger Mode: Set-top, wireless off-camera 6. Zoom range: AUTO, 20, 24, 28, 35, 50, 70, 80, 105, 135, 200mm 7. Vertical rotation angle: -7-90 degrees 8. Horizontal rotation angle: 0-360 degrees 9. Power supply: 4 x AA size batteries (Alkaline or Ni-MH battery, NOT included in package) 10. Light-emitting times: 100-1500 times (AA alkaline cell used, not include battery) 11. Recycle time: Approx 3s (AA alkaline cell used, not include battery) 12. Color temperature: 5600k 13. Flash time: 1200s-120000s 14. Flash control: 8 levels of output control (1128-11), 22levels of fine tuning 15. External interface: External power inferface, PC port, hot shoe 16. Wireless Triggering Distance: Up to 100m 17. Triggering Distance: 20 - 25m Indoor, 10 - 15m Outdoor 18. Dimensions: 67x77x210mm 19. Net Weight: 426g