I have those Kinivo BT240's. I love them. Sound is not audiophile quality, and that's fine, as I don't need that. It allows some ambient sound in, which I prefer. I don't want my headphones to seal sound out entirely.

I use these headphones nearly every day, and I only have to charge them once every two weeks or so.

The ergonomics are very good, too. They usually sit on my neck all day. I can put them on with one hand, one ear at a time. When I ride in traffic, I put one ear on and leave the other off. It works for turn by turn directions.