NADYPRO SOUND NADY HEADPHONES WITH BOOM MICThe QHM100 Stereo Headphones feature a highquality closedback design with boom condenser mic, perfect for stage, DJ, podcast or computer applications. Comfortable, heavily padded adjustable headband and earcups. Other features include: 40mm drivers with a frequency range of 20 to 20,000 Hz, 32 ohm impedance rating, highvolume capability with 105 dBmw sensitivity rating. Supplied with a 10 ft. cord with one 3.5mm mono headphone plug, one 3.5mm stereo mic plug, and a stereo and mono Inches (6.3mm) plug adapter for each, plus inline volume control on cord for headphone audio and OnOff switch for mic. Nady Systems has been designing, manufacturing, and marketing wireless microphones since 1976. One of the first wireless innovators, Nady has sold millions of wireless systems worldwide, and continues to provide some of the most innovative highest performing products on the market at the most competitive prices.