Summary: I had a blue tooth headset I used for work off the computer, but they stopped working. At the very same time Newegg flash had a deal on the Avantree Ultra Light for $29.99 with free shipping. So I gave them a try and was very pleased with them.
Pros: Sound quality Very good range. Stays put when running. Lightweight Mic works good. The buttons click when pushed.
Cons: The multifunction ( pause, play , on and off) button on top is to close to wire for large fingers. I end up using my finger nail which over time may cut the rubber cover.
Summary: The good: they're easy to pair, they're comfy, they don't fall out, they're cheap The bad: no idea how long is left on the battery, the buttons are tiny (and with wear seem to get smaller), the same button for everything is annoying (mean to turn it off, end up restarting playback etc.
Summary: Thus is my immediate review of the product post un-boxing... Product looks amazing, unbelievably light weighted product that's so very gentle on the ears that you don't even notice the weight of it... Music effects are OUTSTANDING!!!!! Baas, treble, mids, highs are awesome!