No connection with navigation system possible!

Actually, a great Bluetooth receiver, small and compact, coupled with Nokia mobile phone without any problems and great sound (with Bose headphones tested). To the surprise of even a 3.5mm jack adapter coupling was it included on clutch so that a common headset can be connected to the BT0020 without additional accessories.

Unfortunately, no Bluetooth connection is possible with Navigon to transmit navigation announcements. This is only possible with a corresponding other Bluetooth headset / hands-free.

Another note for use with a headset and pair with your phone Nokia 6300: The volume is thus not regulated at cell phone. So you need a headset with built-in volume control.

Conclusion: for music transfer recommended. Not suitable for navigation prompts (eg motorcycle).