Descriptions:

Zips all the way through the headphones.
Universal jack works with most phones and music devices.
Special designed with zipper, avoid tangling issues.
Unique and fashionable, suitable for all-ages.
High quality stereo audio sound, enjoy music anywhere.
Synthetic cord covered cable, durable, use for long time.

Specification:
Plug diameter: 3.5mm
Earphone type: in-ear earbud
Sensitivity: 105db/mW
Frequency: 20-20,000hz
Cell diameter: 10mm
Impedance: 32? 5%

What's in the box
1 x Metallic Earphones with Zipper Cord