Left/right earpieces with a high quality microphone on the external surface, a hi-fi loudspeaker on the inside and an electronic level control, either physically placed on the ear piece or controlled via remote for sound level control.
pre-recorded audio identification of a caller which is transmitted as ringtone when a wireless headphone connected to a cellphone. This enables the called party to identify the caller without needing to see the screen of the cellphone.
Notify me of New Entries on this Page
You can receive an email whenever a new invention for sale is added to this category. You can unsubscribe at any time.