The H780 uses Motorola's latest CrystalTalk technology. This employs a combination of dual microphones (an external one to pick up background noise working alongside the usual one you speak into) plus noise cancelling circuitry to block out unwanted background din. In use it works very well indeed. For example, callers reported that speech was still extremely intelligible and there was relatively little background noise on calls made from a packed Oxford Street in London during the busy Christmas shopping period.
Like Motorola's other recent headset, the H780 is charged via its micro USB port. With micro USB becoming increasingly standard for smartphones and even more normal mobiles, it means that it's going to reduce the likelihood that you'll have to carry two chargers with you in future. That said, Motorola does provide both a mains charger and a neat looking (and quite weighty) desktop charging dock in the box. It takes about two hours to charge the headset fully and once charged you'll get around seven hours of talk time out of it. As most headsets struggle to make it to the five hour mark in terms of talk time that's pretty impressive.
As with most of the headsets on the market now the H780 doesn't have a dedicated battery indicator. However, you can get a rough gauge of how much talk time is left by pressing and holding down both sides of the volume rockers switch. This causes the headset's LED to light up with one of three colours to indicate the battery level. Green means you have four and a half or more hours left of talk time; yellow means you have between four and a half and two hours; while red means you have less than two hours left. The headset also switches colours as it's being charged to indicate how much juice is in the battery - a simple, but welcome feature.
The H870 is one of the best headsets around at the moment. It manages to match good looks with great performance. Both call quality and battery life are top-notch and it's comfortable to wear even for long periods. If you're in the market for a Bluetooth headset then it definitely should be on your list of top models to check out.