stollmann develops and markets serial bluers+ bluetooth adapters as stand-alone units or as modules for integration. the adapters are pluggable and the complete bluetooth software is already integrated. they have qualifie......stollmann develops and markets serial bluers+ bluetooth adapters as stand-alone units or as modules for integration. the adapters are pluggable and the complete bluetooth software is already integrated. they have qualified as bluetooth products. in this way, the bluers+ adapters are simple to integrate and require no separate bluetooth-related regulatory approval.