The H15 includes dual microphones and technology for noise cancelling and wind suppression (we could do with some of that in our office!) and it works surprisingly well. Outside in suitably gusty conditions the person we were speaking to couldn't hear any wind noise at all and it did a good job of reducing background clatter at Victoria train station during rush hour. The audio from the ear piece is also excellent, sounding very crisp and clean, while also being loud enough to be useful in noisy environments.
The headset charges via its micro USB port, but Motorola supplies both a mains charger and a desktop dock. A full charge takes two hours and is good for around four and a half hours of talk time, which is about an hour less than you'll get from some of its rivals, such as the Jabra BT530. However, you can also quick charge it for 15 minutes to get an hour of talk time.
Like most headsets around at the moment there's no dedicated battery indicator. Instead you have to rely on the headset's single multi-coloured LED. To put this into battery indicator mode you have to press down both of the volume buttons at the same time. If the indicator shows red there's less than an hour's battery life left, yellow means it's got 1 to 3 hours worth of juice and green means it's almost at full capacity. We'd prefer a proper battery indicator, but at least it does give you some indication of the amount of juice left in your headset.
Overall, we think this is a decent headset from Motorola, but not a superb one. The noise cancelling technology worked a treat so call quality was always first rate. It's also comfortable to wear and relatively easy to use. Nevertheless, it's let down by the ugly design and short-ish battery life.