2 3Stride B-PR BTE hearing aids2123452126781.Your hearing aids at a glance1 Multi-function button with indicator light -switches between listening programs, changesthe volume level, and accepts or rejects mobilephone calls depending on your customizedfitting2 Microphone - sound enters your hearing aidsthrough the microphones. Microphone shield -protects microphones from dirt & debris3 Earhook - your custom made earmold attachesto your hearing aids using the earhook4 Tubing - part of the earmold that attaches it tothe earhook5 Earmold - allows the sound to pass from thehearing aids to the ear and holds the hearingaids in place6 Slim tube - sound travels down the slim tube tothe ear canal7 Dome - holds the slim tube in place in your earcanal8 Retention piece - helps prevent the dome andslim tube from moving out of the ear canal