If you have an older Phonak RIC Hearing Aid, such as the ones listed, you will need these adapters to work with the new xS or xP receivers, as the old round connector receivers have been discontinued: MicroSavia Art MicrpPower Audeo YES These include 10 adapters in each kit, as well as 5 replacement pins. Hearing aids pictured are not included and just show the example of models that need these adapters when replacing with new receivers.