I am selling my like-new Bose Quiet Comfort QC3 acoustic noise canceling headphones. Used twice - absolutely PERFECT condition. Staying with the in-ear version. $175

Can't tell this from new - comes with EVERYTHING. My loss, your gain.

Can be picked up in Los Altos or at Stanford.

If you're reading this ad, the headphones are still available.

Compact, on-ear design
Technology innovations enable QC™3 on-ear headphones to give you the same level of acclaimed performance as our QC2 around-ear headphones.

Acoustic Noise Cancelling® headphones
Proprietary Bose® technology electronically identifies and reduces noise while faithfully preserving the audio or tranquility you desire.

TriPort® acoustic headphone structure
Enjoy deeper, richer lows from a compact headphone design. TriPort acoustic headphone structure features small ports in each earcup to produce a rich audio performance remarkable for headphones this size.

Active equalization
Electronically tunes the frequency response, enabling outstanding audio performance.

Single, detachable audio cable
Greater convenience than standard dual-cable designs. Use QC3 headphones without the cable for noise reduction only. To add audio, just connect the cable to in-flight entertainment systems, computers, portable players and home audio.

Rechargeable battery with charger
Custom rechargeable lithium-ion battery provides approximately 25 hours of reliable run time. Small wall-socket charger also included. Learn about easy, no-cost rechargeable battery recycling.

Low battery-life indicator
On/Off light flashes when approximately four hours of battery life remain.

QuietComfort® ear cushions
Proprietary soft cushion, on-ear design establishes a critical acoustical seal between the headphones and your ears. This enhances the benefits of our Acoustic Noise Cancelling® headphones and helps to provide superior audio quality.

Adjustable headband
Up to three inches of adjustment in headband length.

Dual-plug adapter
Single headphone plug converts to dual jacks for connecting to a variety of in-flight audio sources.

¼" stereo-plug adapter
Converts the 1/8" (3.5 mm) headphone plug to a 1/4" (6.3 mm) plug for jacks used on home stereo equipment.

5' extension cord
Additional cable for more freedom of movement and increased accessibility to audio sources.

Fold-flat earcups
On-ear headphones rotate 90 degrees to fold flat for easy portability and storage in slim carrying case.

Portable carrying case
Sleek, compact case to protect your headphones and store accessories.