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Frequency response: 100Hz-20kHzIdeal for schools, libraries and training departmentsincorporates a plastic ear cushion that allows easy cleaning and maximum durability in multiple user environmentsEar cushion creates a seal and vacuum to the ear that reduces ambient noise interferenceCord length: 4' straight, single entryWeight : 0.25 lbsUPC Code : 0021299151402L 6.25 in. x W 5.75 in. x H 2.5 in.
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