Compatible with: Interacoustics Affinity 2.0, Interacoustics Equinox 2.0, Interacoustics Callisto, Interacoustics VIOT, Interacoustics Affinity Compact, Natus-Otometrics Aurical, AudioScan Verifit 1, AudioScan Verifit 2 Impression pad, foam Otoblockâ„¢, large, blue