Erka Erkaphon Duo Child stethoscope is particularly high-quality stethoscopes and were specifically designed for smaller bodies. The small double-head chest-piece is optimally suited to the auscultation of children. The open bell side is specially designed for low frequencies and the membrane side for the entire frequency spectrum. The standard 15° inclined binurals can be individually adapted to the ear canal characteristics of the user. The ergonomically shaped and individually adjustable headset guarantees an optimal fit.