Difficulty with listening, pronunciation, communication or voice modulation? Forbrain uses patented technology to retrain how information is processed by the auditory and nervous system. Wear the headset with microphone for a short period of time every day as you speak, read or even sing out loud. The user's voice is heard through bone conduction rather than air conduction through the ears. Not designed for stuttering or tinnitus. 2 year warranty. Use with adult supervision. Age 3+