EAR CANAL EARBUD SOUND SYSTEM

摘要

An earbud sound system for a small speaker system having at least one earbud with a speaker and having, an earbud housing body defining a hollow interior a a circuit board within the housing body and having a signal input connection and a ground connection, and a speaker output connection and a speaker return connection; a bifilar coil unit having first and second coils wound in a bifilar manner, mounted on the circuit board within the housing body , and there being two first coil connections, and two second coil connections on the circuit board, for supporting the bifilar coil unit in a secure manner on the circuit board;