| Class-D circuit | Produces less distortion and gives better high-frequency emphasis than the more common Class-A circuit. |
| dispenser-adjustable feedback control | Helps your audiologist regulate the hearing aid so that you get as much hearing as possible without walking around whistling. |
| dispenser-adjustable tone controls | Helps your audiologist fine-tune your hearing aids to your hearing loss. |
| dispenser adjustable output limiter | Helps your audiologist keep your hearing aids from being TOO loud. |