Sonic Innovations, Inc. designs, develops, manufactures and markets advanced digital hearing aids designed to provide the highest levels of satisfaction for hearing impaired consumers. Capitalizing on its advanced understanding of human hearing, the Company has developed digital signal processing (DSP) technologies and embedded them in a small single-chip DSP platform installed in a hearing aid. The Company's Natura, Altair, Tribute and Quartet product lines, which incorporate its DSP platform, are among the smallest products available, and can be purchased in the five common models for hearing aids: behind-the-ear, in-the-ear, in-the-canal, mini-canal and completely-in-the-canal.