We paired the Motorola H790 with the Apple iPhone 3G. Its call quality was quite impressive overall. On our end, we heard our callers without a problem with hardly any static in the background. Their voices sounded clear and natural.
On their end, callers did detect a tiny bit of buzzing at times, but it was not a distraction. For the most part, they could hear us loud and clear in a variety of situations. We tested the headset in a quiet office, in a moving vehicle, and inside a busy cafe during the lunch hour. In the noisiest environment, callers did hear a little bit of background noise, and our voice quality diminished a bit; however, we could still carry on a conversation. We also made a few test recordings on the voice recorder on our phone to verify their claims.
The Motorola H790 has a rated battery time of 5 hours talk time and 7 days standby time.