I bought this unit for home use, not professional. We started with the home product from Redux, but it took so long that it was not practical if you need to dry your aids daily. My aids had so much moisture from swimming and activities that it would take 3 hours or more to dry them, then charging was another 3 hours or so. To have them ready for the next day, I'd have to wake up in the middle of the night and put them in the charger. Not great if you're doing this daily. I finally forked over the money to buy this one and they're done in 10 minutes, so they can be dried multiple times a day if needed, and no more waking up nightly. It's very efficient and fast. I would be nice if there were some visual cues to differentiate between rechargeable dry and battery dry options. I always look very closely to make sure I'm choosing the right option because who knows what effect that might have, if any. Making them in different spots or different color would be helpful.