Noise-Cancelling HeadphonesThe HamiltonBuhl NC-HBC headphones are specially-designed to reduce harmful and annoying low frequency sounds in noisy environments. Comfortable for extended use, the over ear leatherette ear cushions offer added passive noise reduction. The 5' braided nylon cord make this unit ideal for use with tablets, mobile devices and any unit with a 3.5mm stereo headphone jack. Runs on one "AAA" battery (not included). Includes zippered carry case for protection and easy storage.
Specifications: Speaker: 40mmMagnet: NeodymiumSensitivity: 110Impedance: 32¦Frequency range: 20Hz-20KHzNominal input (Rate power): 40mWMaximum input (Power handling capacity): 100mWActive cancellation: Up to 20-25dBCancellation: between 100-500HzCord: 5' braided, nylonPlug: 3.5mm stereoBattery: One (1) AAA (not included)Warranty: 1 Year