The Discovery Mono Headset from Califone won't break the bank with its low cost and long-lasting construction. It comes with a built-in electret microphone, perfect for language labs, voice recognition, VoIP and other uses. The dual, steel-reinforced headband provides comfort while ensuring years of durability. The vinyl cushions clean up easily between uses. The noise-cancelling electret microphone provides reliable response and doesn't pick up unwanted noise, perfect for sensitive audio applications. The cord withstands more than 250,000 flexes and replaces easily.