Fiio FD3 In-Ear Monitors Version:FD3 Pro Cayin's description of the HA-1A

Cayin's description of the HA-1A sound has always been "sincerely honest to the music

Sleeved Complement C has limited y-splitter options while Naked Complement C is compatible with most Eidolic splitters

10-element noise-shaping design

84-inch automotive-grade touchscreen

7 mm push pull dynamic drivers plus 6 Knowles balanced armatures per side

Fiio FD3 In-Ear Monitors Version:FD3 Pro Cayin's description of the HA-1AThe Fiio FD3 is a semi open single dynamic IEM with a 12 mm diamond like carbon diaphragm and a warm, fun house tuning. It comes in two versions: the standard FD3 with a monocrystalline copper cable, and the FD3 Pro, which upgrades to Fiio's LC RC silver plated cable with interchangeable plugs. Type and Technology A 12 mm dynamic driver with a DLC diaphragm sits in a 1. 5 tesla magnetic circuit, driven by an ultra fine Japanese Daikoku copper clad