theBoom Quiet Patented UmeVoice microphone technology lets users be heard in any setting -- silent to extremely noisy. Detachable boom allows user to use device as stereo headphones or to simply reduce the cabin noise while travelling in an airplane. Can be used with a PC / laptop with our PC adaptor (sold separately) Specially designed noise reducing speaker domes with soft covering to fit firmly over ears for optimal seal. Extremely comfortable and durable.