I read a lot of very positive reviews about this headset and purchased one. I've been very disappointed with the WEP200. It doesn't stay in my ear well, often disconnects randomly from my phone, and people on the other end tell me my voice sounds muffled. The maximum volume is also very low. I've been using it with a Blackberry 8130. My girlfriend tried using a WEP200 with her Sanyo Katana and it didn't work well for her either. Similar problems.I've had much better success with Scala and Bluespoon headsets. My old Motorola H850 works better than this.