MX5 MSRP $44.95 Looking for $30.00 O.B.O.

(From sennheiserusa website)vvvv
The MX-TREME in-ear headphones have been designed with the active, on-the-go individual in mind. Users of personal stereos and CD players need not be concerned with poor audio quality and unattractive, bulky ear buds. Sennheiser's newest innovations in in-ear headphones surpass all of Sennheiser's quality and design standards in an affordable, attractive package.

Frequency Response 20-22,000 Hz
Impedance 16.5 ohms
Sensitivity 106 dB SPL at 1 mW
Signal Cable 3 feet w/ volume control
Termination Right angle stereo 1/8" mini phone plug 1/4" adapter included
Weight 0.21 oz.
Color Black with gold decorative rings,silver logo
Storage Case Black with blue Sennheiser logo