The OCX 880 headphones from Sennheiser provide high-quality audio in an elegant design. The headphones feature a classy look with an ergonomic construction that channels the cables away from the ears for a comfortable fit. Dynamic drivers with specially-tuned transducers create clear, lifelike audio with a wide frequency response.
The headphones have in-ear pieces with multiple sizes of interchangeable eartips to provide a snug fit with excellent noise isolation. Earclips go behind the ears for additional stability and comfort. The cable features an integrated rotary volume control that lets you make adjustments while keeping your music player in your pocket or bag. A cable clip is included to reduce snags and tangles. The standard 3.5mm plug provides compatibility with MP3 players, CD players, and more.
| Type | In-Ear/Earclip |
| Frequency Range | 19Hz - 23kHz |
| Impedance | 32 Ohms |
| Sensitivity | 115dB |
| Maximum Input Power | Not Specified by Manufacturer |
| Connectors | Standard 3.5mm Stereo Mini Plug |
| Cable Length | 3.9' (1.2 m) |
| Weight | 0.46 oz (13g) (Without Cable) |