In detail, autonomy is sufficient; No hatch in the sound (reception and emission range), the corresponding along well; It is light and adapts well to either ear thanks to the small plastic hoop.
The main button (which seems invisible in the photos) allows starting, stopping, redial and corresponding (but I could not get on my HD2 and S3 phones) voice command. The volume is adjustable and is suitable in most situations.
I had the opportunity to work longer while wearing it (DIY on a half day, at work, etc.) and does not irritate the ear: I even manage to forget ...
She takes care of a micro-USB port and really offers a battery life of 5 days with some conversations 20 to 40 minutes a day.
In mind, I do not see very much, it is not possible to listen to music on it.
