Hello @Gilbert… You would need 2 x, Roger X (Type 02) Educational Receivers with serial numbers above 1744, a Roger Installer to activate the Roger X Licenses into your Marvel aids, only Roger X (Type 02) work with the Inspiro, and all other Roger devices… Roger X (Type 03) does not work with Inspiro, and only works with certain Roger devices! Within each individual Marvel aid, it has 2 licensing slots, 1 for (Type 02) and 1 for (Type 03), both (Type 02 & 03) Licenses can be held in their slots at the same time… Although, I have in the past, mistakenly installed 2 x, Roger X (Type 02) into one aid, I never noticed the aid was still switched on… A local friendly A.uD, who works with Phonak aids would be helpful, it takes about 10 minutes max to install the Licenses with the Roger installer… I can’t remember if you also need Roger Touchscreen with an Individual Inspiro, it’s been a while since I have used the Inspiro & Touchscreen, I don’t think you do, I could be wrong though? If you where linking say, 2, 3 or 4 Inspiro’s, then yes you would… I hope this helps, good luck, cheers Kev 