With PC Sync Interface: YN14EX II is equipped with standard PC synchronous interface, which allows you convenient to use synchronous flash by using PC synchronous line. Model: YN14EX II. Macro Ring Type Dual-Lamp Flash: Support M/TTL flash ratio setting, and the flash tube A and B can be adjusted together or individually, it can create shadows on the subject and make the photo with sculpture effect.
eBay