Positives:1. Easy to setup2. Like the volume controlNegatives:1. Not adjustable to different ear sizes; the speaker was nice and loud, but when fit correctly and comfortably on MY ears, it did not aim at my ear whole and I could barely hear a thing.2. Blinky blue LED lights up my entire car and is very VERY annoying at night.3. Does not hold to ear well, worried about it falling off.4. During the first 45 minutes of use while in my car (razor phone in left breast pocket, headset on right ear) bluetooth connection twice was lost twice.