Neither of the subject HAs provides a button configuration for the rechargeable versions that will mute the mic. The respective iOS/Android apps can mute mics, but users/reviews report many Bluetooth connection problems with those apps. I’d preferable rechargeable to 312 batteries (yeah, I know, many prefer replaceable batteries).
Does anyone with a rechargeable Real or HearLink have a way to eliminate background noise while listening to streamed speech from their phone?