2 3Your hearing aids at a glance1 Tube - sound travels down the tube to the speaker unitthat is attached to your hearing aids2 Microphone - sound enters your hearing aids via themicrophones. Microphone shield - protectsmicrophones from dirt & debris3 Push button - switches between listening programs,comfort-clarity setting or changes the volume level,depending on your customized fitting4 Battery door/on & off - close the door to turn on yourhearing aids, partly open the door to turn off yourhearing aids. Opening the door all the way gives youaccess to change the battery5 Dome - holds the tube in place in your ear canal6 Retention piece - helps prevent the dome and slimtube from moving out of the ear canal7 Speaker unit - amplifies the sound and sends it directlyinto the ear canal8 Custom mold - holds the hearing aids in place andcontains the speaker unit1234567714 823