After trying several bluetooth headphones, I found the Sony DRBT50 Headset. It really delivers great sound at up to 30 or so feet from the bluetooth transmitter. I don't use the microphone feature, so I can't tell. The headphone use is easy, but the control buttons on the headphone are difficult to use. But this does not detract from the great sound and long battery life. Combination with a good bluetooth transmitter is also essential. I love the combination with theIOGEAR USB 2.1 Bluetooth Micro Adapter GBU421and its simple software. I feel that now bluetoooth works really well for my audio needs.