This is from the Spanish auditivo.
aw·di·tí·bo
This word is now very rarely heard or used. It refers to the earphone or ear piece that serves as the listening component of a classic telephone.
KAHULUGAN SA TAGALOG
awditíbo: bahagi ng anumang kasangkapan na konektado o inilalapit sa tainga, tulad ng sa telepono, radyo, at iba pa
