So a speakerphone for money? Simply unbeatable! a car charger is also going to use this for the mobile phone is if necessary. Even at high speeds on the motorway (140 kph) I understand the participants super. The call quality at the other end I was told to be very good. Unfortunately somewhat impractical when the sun visor is used in sun and when it is dark, then sucks the blue flashing LED. Despite that, I would buy this hands-free anytime.