Six black wired headsets made by Logitech. For these, I have only confirmed that audio can be heard in the headphones with a simple test. Microphone testing has not been performed. Seven other no-brand headsets. Operation has not been confirmed for these. Some items are partially damaged. No warranty is provided beyond the above descriptions; items are sold as-is. - Quantity: Many - Brand: Logitech - Type: Wired headset - Color: Black - Microphone: Yes - Design: Over-ear Thank you for viewing.