Summary: This has a lot of potential, but they went overboard with their technology to the point where it gets in the way. For example, when on a call, if you hit the mute button on the headset, you get a voice prompt and a beep telling you that mute is on or off. Unfortunately, the audio from your call completely cuts out so you are left with 2-3 seconds of hearing nothing but the headset talking to you.
Summary: I have a bad shoulder. Lengthy cell calls can be cheap but painful. Another problem with regular Bluetooth devices was the people would have a problem hearing me. The C720 Headset eliminates these problems.
Summary: Qualité sonore parfaite (écoute/micro), que se soit en Bluetooth ou en USB (double connection tres pratique). S'allume / décroque automatiquement lorsque l'on met le casque sur les oreilles - très pratique aussi. Le boitier de transport est un plus très appréciable pour les déplacements.