Ikko's OH1S earphones feature Knowles 33518 carbon dynamic drivers and utilize the brand's Separating Vector Acoustics Cavity System technology for incredibly accurate sound reproduction in a compact design. The speaker chamber is made of resin and aluminum alloy to limit interference. This intelligent and incredibly precise design guarantees a rich, precise and dynamic sound.

In addition, the design of the OH1S has been carefully studied to adapt perfectly to the shape of the ear and ensure optimal comfort, even during long listening sessions.