Stopped working

This was my second of four Bluetooth headsets. I really liked it, up until the point after 6 weeks when the microphone started to go. Over a period of two weeks, I kept hearing the person on the other end, but they couldn't hear me. At first, I was able to make it work by shaking the headset, but after a few weeks that stopped working. After that, I deleted the pairing in the phone, and was unable to re-pair the device with the phone. Sadly, I had to throw it away.