FM 8, Transparent
Fits Safran, Syncro, Tego BTE families and GoPro. For FM receivers with euro pin connector e.g. Amigo R1, Amigo R2

FM 7, Grey
Fits Sumo BTE family, Swift 120+ and Spirit III SP. For FM receivers with euro pin connector e.g. Amigo R1, Amigo R2

FM 6, Transparent
Fits Atlas family, GO, Ergo and Swift. For FM receivers with euro pin connector e.g. Amigo R1, Amigo R2

FM 5, Transparent
Fits Adapto, Gaia, Atlas Plus Direct and Go Direct. For FM receivers with euro pin connector e.g. Amigo R1, Amigo R2