Best earpiece for Sony

Hi guy's

I currently have a Sony HBH-IV835 and it drives me bloody mad.The thing
won't connect automatically when the phone rings but will hang up a call.
Occasionally I answer and both the ear and phone are mute. I've missed so
many calls it's past funny. Now I note the battery is running down much
quicker to the point where the red light came on this afternoon when it had
been in the car since 10.00am.

So what is the best earpiece currently around?

Any thoughts most welcome ;-)

Cheers

Richard