Sennheiser HD650 headphones in open box condition. We test everything for channel balance and ohm rating and these are excellent. Clean and includes 3.5mm adapter. They do require amplification, not for plugging into a telephone or computer onboard sound. Even an Apple 3.5mm USB adapter will give the power boost they need though. High quality sources and more power really does help bring out details and bass response. We've carried every model of Sennheiser headphone (except the HE 1 a.k.a. Orpheus) and will gladly answer any questions you have.

We ship the same day on orders before 12 noon EST Mon-Fri and 10am Saturday.

Your order will be packed and boxed very carefully.
Visit our store, we specialize in audio equipment, and constantly have new items arriving.