Brand new wireless headset, died as I was on the treadmill. Initially the power won't turn on. When I plugged it in to recharge, the red light came on briefly, but was quickly followed by a steady blue light. I tried resetting to factory setting by holding power button and (-) simultaneoulsy for 7 seconds, nothing happens, blue light is still on. I can't even get the blue light to turn off by holding the power button. PLEASE HELP, this unit is only 4 months old and I paid $150 for it. I will never buy another Sony headset if this doesn't get resolved.