- Etymotic Bean Quiet Sound Amplifier
- #10 zinc-air battery
Ratings & Reviews
Compatible with most cell phones
For wide-ranging use
Enhances sound clarity, so you can hear easily while chatting in both quiet and noisy areas
Makes it easy to select a normal or high level of audio enhancement
Requires a #10 zinc-air battery (included) for reliable operation. Low-battery signal provides subtle alerts to keep you informed of the battery's status.