Sony Stereo Bluetooth Headset SBH20 is my suggestion as its has Good sound quality with bundled earbuds. Flexible design. Works with any standard-size 3.5mm headphones or speakers. Inexpensive. NFC for easy pairing.
I've got the M165. I believe the other 2 are earlier versions of it. The 165 is a really nice headset. It's got voice commands, great battery life, fits well and is very compact. It pairs easily with just about any phone, too. I use mine as a spare when my main headset, Voyager Edge, is charging, in the car or otherwise unavailable.