Features: Oval Lamp Design Creates Soft Light: Equipped with unique oval lamp holder to create soft and smooth transition effect,making it easier to create natural and beautiful light. High Speed Sync(HSS): When HSS function is activated, this speedlite YN685II can be used with every shutter speed and the maximum sync speed is up to 1/8000s. Turning on the high speed sync is useful to limit the influence of ambient light when shooting in bright conditions. High-speed Recycling & External Power Supply: The recycling time for full power output is only about 2 seconds. Even if you don't use a new battery, you can get an extremely fast recycling experience of 3~4 seconds. After connecting to an external power supply, it can meet your higher recycling needs. GN60 & Auto/Manual Zooming: YN685 II is a 2.4G wireless speed-lite of high guide number, which supports ETTL, M and Multi mode. Support auto and manual zooming, and the flash coverage can be changed between 20~200mm. Supports Firmware Upgrade: The YN685II is equipped with USB interface, supports firmware upgrade, you can download the upgrade firmware through the YONGNUO official website to upgrade the flash. Large-size LCD Display Screen: It is convenient for you to view or set various functions of the flash clearly and intuitively. 2 themes of display are free to change. Specifications: Brand: YONGNUO Model: YN685II Circuit Design: Insulated Gate Bipolar Translator(IGBT) Guide Number: 60(ISO 100, 200mm) Flash Mode: ETTL, M, Multi Trigger Mode: Set-top, wireless off-camera Lamp Holder Zoom Range: Auto, 20, 24, 28, 35, 50, 70, 80, 105, 135, 200mm Adjustable Angle: -7~90°(vertical), 0~360°(horizontal) Power Supply: 4 * AA alkaline batteries or AA nickle-metal hydride(Ni-MH) batteries(Not included) Light-emitting Times: 100~1500 times(using AA alkaline batteries) Color Temperature: 5600K Sync Mode: High speed 1/8000s sync, first-curtain sync, second-curtain sync Flash Time: 1/200s~1/20000s Recycling Time: 2s Flash Control: 8 levels of brightness control(1/128~1/1), a total of 22 levels of fine adjustment External Interface: Hot shoe, PC interface, external charging interface, USB interface Additional Functions: Master flash, off-camera flash, exposure compensation, exposure bracketing, exposure lock, lamp bead electric zoom, voice prompts, automatic save settings, power saving mode, overheat protection, custom functions, firmware upgrade Item Size: 20.4 * 6.5 * 7.8cm / 8.03 * 2.56 * 3.07in Net Weight: 430g / 15.17oz Package Size: 22 * 10 * 9cm / 8.66 * 3.94 * 3.54in Package Weight: 600g / 21.16oz Packing List: 1 * Speedlight 1 * Carrying Bag 1 * Mount Base 1 * User Manual