YongNuo YN-14EX TTL Macro Ring Lite Flash Light for Canon EOS DLSR Camera 1.LARGE-SIZE LCD DISPLAY / LED AF ASSIST LIGHT 4.PROVIDED WITH EXTERNAL POWER SOCKET / AUTOMATIC SETTINGS SAVING 2.SOUND PROMPT SYSTEM / HIGH SPEED RECYCLING SYSTEM 5.EQUIPPED WITH PC SYNC INTERFACE / SUPPORT THE LENS OF MULTIPLE FILTER SIZE 3.SUPPORTS MASTER TTL FLASH / RING TYPE DOUBLE LAMP MACRO FLASH