Basic Fluency System with added sine-wave masking (MAF) manual button to pull stutterers out of silent blocks.

Easy-to-use Altered Auditory Feedback device for telephone calls or face-to-face conversations.

Delayed auditory feedback (DAF) and Frequency-shifted auditory feedback (FAF) - two FAF settings: moderate (-0.4 octaves) and extreme (-0.8 octaves).

Includes full-size headset and miniature wired iPod-style earset.

Plugs into telephones. 9-volt battery.

4.5" x 2.7" x 0.9"; 4.6 ounces.

What's in the Box:

- Basic Fluency System
- Sennheiser PC131 binaural (two ears) lightweight headset
- Plantronics MX100S binaural wired iPod-style earset - Telephone cable
- 110-volt AC adapter
- No Miracle Cures: A Multifactoral Guide to Stuttering Therapy book with video