House of Marley Liberate Air seem to meet your requirements. - 9 hours battery life. - Additional 2.5x charge w/ case. - Personally, I haven't had any drop outs. - Great SQ and bests everything I've tried in the price range. - Good call quality. Keep in mind there are no volume controls on the buds and no ambient mode. Since I primarily use them in the office and have my phone with me, lack of controls on the 'buds is a non-factor in my case.