Compatible with: Amplivox Amplivox 116, Amplivox Amplivox 160, Amplivox Amplivox 170, Amplivox Amplivox 240, Amplivox Amplivox 260, Amplivox Amplivox 270, GSI GSI 61, GSI AudioStar Pro, Interacoustics AD226 New, Interacoustics AD629, Interacoustics AC40, Interacoustics AD528, Interacoustics Affinity 2.0, Interacoustics Equinox 2.0, Interacoustics Callisto, Interacoustics Affinity Compact, Natus-Otometrics Aurical, MAICO MA 1, MAICO MA25, MAICO MA27 (old), MAICO MA27 (new), MAICO MA30, MAICO MA33, MAICO MA40 (old), MAICO MA41/42 (old), MAICO MA41/42 (new), MAICO MA50, MAICO MA51, MAICO MA52, MAICO MA53, MAICO Pilotentest /Pilot MP3, MedRx A2D+ Audiometer, MedRx AVANT Stealth, MedRx Avant ARC, MedRx A2D+/REM+ Combo

For Sennheiser HDA200, RadioEar DD450, DD65v2 and Peltor audiometric headbands. 1 pc.