MED-EL - You asked for longer battery life and we listened. With up to 17 hours of power from a single charge, the Rechargeable Battery Max makes your SONNET series audio processor
Battery Options to Suit Your Lifestyle With SONNET 2 - The MED-EL Blog
SONNET 2 - SONNET 2 - Hearpeers Forum
How to use your SONNET 2 Rechargeable Battery Pack. #shorts #youtubeshorts #medel #cochlearimplant - YouTube