This headset pair with 2 devices simultaneously (phone + computer, for example) without any problem, and conversation is with great sound.
Between 05 and 06h autonomy to recharge and to top it off, the box contains what connect the headset to the mains (220V) + cigarette lighter + USB directly on the computer ... simply perfect .
3 sizes of tips are provided to best adapt the size of the earpiece to your ear.
Do not hesitate a second to buy it, I never saw a headset as comfortable and efficient at all levels, for a small price.