IE800 is Sennheiser's flagship earbuds. Audiophiles will know this legendary in-ear headphones. This is a warranty replacement I got directly from Sennheiser. It is sealed, unopened, exactly the same as a new one.

Some technical details:
Dynamic linear-phase 7mm transducer delivers extremely wide frequency response: 5-46,500 Hz(-10 dB)
The precision ceramic housing features attenuated dual-chamber absorber (D2CA) to deliver extremely low harmonic distortion even at high output levels (< 0.06% (1 kHz, 94 dB)).
16-ohm impedance compliments portable audio devices.

Pick up on campus only.