At the center of mind440 is Dual ISP, which integrates 2 layers - the listening layer and the awareness layer - into a refined, more powerful and more efficient Integrated Sound Processing platform exclusive to Widex. Available in CIC, canal, half shell, full shell, m4-m, m4-m-CB, m4-9 and m4-19 models to fit a variety of hearing losses ranging from mild to severe, with the mind™440 series, Widex delivers the ultimate in sound quality.