Phonak Power Pack
This Phonak Power Pack for Phonak Charger Case Combi is connected underneath the charger. The Power pack hardly can be seen once attached at the bottom of the charger.
The Phonak Power pack acts as a Power bank for your regular charger. It can recharge your hearing aids up to 7 times before needing to be recharged.
if you are a frequent traveler, and have limited access to power supply, this Power pack is indeed useful.