Yongnuo YN568EX - Nomenclature

IV. Nomenclature
1．Reflection board
2．Wide-angle diffuser
3．Flash head
4．PC port (for input)
5．Contact cover
6．Battery chamber’s cover
7．Wireless trigger sensor
8．Remote indicator
9．AF-LED
10．Locking ring
11．Hot shoe stand
12．Sound port
13．Hot shoe contact