2 3Your hearing aids at a glance1 Wire- connects the speaker unit to your hearingaids2 Microphone - sound enters your hearing aids viathe microphones3 Battery door/on & off - close the door to turn onyour hearing aids, partly open the door to turn offyour hearing aids. Opening the door all the waygives you access to change the battery4 Dome - holds the tube in place in your ear canal5 Retention piece - helps prevent the dome and slimtube from moving out of the ear canal6 Speaker unit - amplifies the sound and sends itdirectly into the ear canal7 Custom mold - holds the hearing aids in place andcontains the speaker unit22334115766