Sentry Bluetooth wireless headphones. In perfect condition, paid $35, asking $20 OBO.
Bluetooth Connection: Wirelessly connect your Blutooth capable devices. Hands Free Mic: Listen to Music & Talk with Friends. Rechargable Battery: Recharge headphones with included USB cable. Control Buttons: Play/Pause, Skip Tracks, FF, Rewind, Answer Calls, Memory Driver Unit: 40mm Impedance: 32+/-3 ohms Sensitivity: 103dB+/-3dB Frequency: 20Hz-20KHz
Also comes with 3.5mm Aux cable for plug-in capability.