When pairing with the app, I can only select either the right or the left hearing aid, but not both at the same time.

The hearing aids were not fitted as a pair. Please contact your hearing care professional to have the hearing aids fitted again (with the latest available fitting software). Hearing aids must be fitted together to connect with the myPhonak app at the same time.
Not all pairs of hearing aids are compatible with the app. Pairs of hearing aids with Bluetooth functionality, where both devices are of the same type (matching model and performance level), are compatible with myPhonak.
Additionally, certain mixed combinations of hearing aid types are also supported. The 6.6.0 or newer version of the myPhonak app supports mixed pairing of two R and RT hearing aids. The myPhonak app supports following compatible hearing aids combinations:
- Audéo M-R & Audéo M-RT
- Audéo P-R & Audéo P-RT
- Audéo L-R & Audéo L-RT
- Bolero M-M & Naida M-SP
Both hearing aids need to have the same performance level. Please contact your hearing care professional for more information.