The SouthWing SF605 Bluetooth car kit features a DSP for noise reduction and echo cancellation to make your calls sound crisp and clear. The full duplex 2-Watt speaker is designed to work well in even the noisiest of environments. We have seen Bluetooth speakerphones before and our hands-down favorite has been the BlueAnt Supertooth 3. The Supertooth 3 was an excellent performer and the speaker and noise reduction system were great. Let’s see if SouthWing’s SF605 can be crowned the new king...