Did the 2150 max is now 2 days and have to say it convinces across the board. Among the "normal" functions I do not write much since identical to 2100/2100 max. The only differences are already integrated TTS (2110 available for download for 19.95) and the Bluetooth hands-free function. The surcharge of almost 50 therefore means 30 for the Bluetooth handsfree. What you're experiencing is not in the description and also from the Navigon Hotline that the 2150 max also has a microphone built in, so you can leave the car, the cell phone even in your pocket and make calls. The link between mobile phone and 2150 max is extremely simple and has in my case (Nokia E61i) works immediately. Phone number has been transferred to the 2150 within a few seconds and I was able to select from the Navi directly via soft keys print each entry in my phonebook. The voice quality was much better than expected, and takes it with everyone "Retrofit hands-free" on. However, to a fixed installation, it is the absence of an external microphone and external speakers for lack not approach (also no one will seriously expect). After one set up my phone will now connect automatically within a few seconds with the Navi once I go into the car - really great. Another useful feature is that you can dial the stored POIs directly to eg the restaurant to reserve a table or take away pizza to order on the way. I have long wavered between the Garmin Nuvi 760 TFM and the Navigon 2150 max - both of which are now about the same price and navigate according to tests at the same level. Garmin has many more quadratic differentials (MP3 / FM transmitter ... and in my opinion is more intuitive to use). Ultimately, I was convinced the quality of the speakerphone (Garmin 760 as much worse) and available only in Navigon 2 year map update for uniquely 19.95. After my previous experience, I can say a clear recommendation for the 2150 max.