Bellman Reise-Etui - BE9147 Oticon CROS PX The custom hearing protection is

The custom hearing protection is manufactured using a reproducible 3D process including a high-gloss and robust "Smart Finish Brilliant" surface finish

you need the Phonak Receiver 4

As well as for Roger On iN microphones

Range: up to 30 meters

Bellman Reise-Etui - BE9147 Oticon CROS PX The custom hearing protection isBellman Travel Case BE9147 The travel case is specially designed for Bellman & Symfon sound processors and hearing instruments. It is made of durable black canvas and has a reinforced lid. The case can be used for all Bellman & Symfon sound solutions. Features Durable canvas withstands heavy use, harsh conditions and travel Magnetic closure and zipper for easy opening and closing Elegant design; black with white trim for a simple, minimalist look