Aliph Jawbone 2 Bluetooth Headset for $53.99 after code EMCLPMX33. Note that it comes in OEM packaging, which means no pretty retail box and marketing materials but is otherwise identical. This headset has a voice activity sensor that identifies and isolates the speech and subtracts unwanted background noise. It includes 4 different ear loops and 3 ear buds for fit options. This is among the most popular advanced noise-cancelling Bluetooth headsets. As comparison, Walmart has it for $128.