What are you looking for---something mobile or something for your desk? At my desk I use a Plantronics Savi 700 series. It integrates well with a wide variety

What are you looking for---something mobile or something for your desk? At my desk I use a Plantronics Savi 700 series. It integrates well with a wide variety of Windows phone apps---e.g., grabbing the headset will auto-answer, replacing it or pressing the button on the side will hang up---and since it's multi-line and supports Bluetooth, I can use it with my mobile phone, too. Mac phone app integration is less than stellar and mostly limited to Skype (not Lync) and whatever Cisco's softphone is called. (Older versions of Lync for Mac integrated with the headset, so I'm not sure if I broke something or Apple/Microsoft/Plantronics just dropped the ball.) Audio quality is fantastic and with the default config, I can let the dog out and walk around the house without any issues. I don't recall how long the battery lasted with the default configuration, but I don't really remember running out of battery except on days where I have back-to-back-to-back meetings. I ended up switching on some power conservation settings that reduced its range, and since then I haven't had any issues running out of battery. (I just schedule meeting breaks to take care of the dog.)