The FD3 is an entry-level HiFi earphone model following the footsteps of the FD5. As a complementary product, the FD3 inherits the merits from the FD5 by using a large 12mm dynamic driver with its diaphragm using Diamond-Like Carbon (DLC) with a robust magnet of 1.5 Tesla magnetic flux. It becomes more lively in sound tuning and more capable in pop music yet with excellent resolution in high frequencies.