The 3.5mm connector of the in-ear headphone could bring the convenience as it could connect most of the device that comes with 3.5mm interface
Wearing in-ear headphone, you could easily control the volume by pressing the button
Suitable for Samsung and for iPhone such smartphones
3.5mm three-stage gold-plated plug, used only in most mobile phones, to ensure that the signal transmission process without distortion of sound quality, plug more wear
Receiving and answering phone calls through the in-line microphone and answer key. Wired remote volume (+ -) control
In-ear noise reduction design, with noise isolation effect, sound quality is even more moving. Ergonomic wear design

Specification:

Volume Control:Yes
Material:TPE
Function:Common Headphone
Plug Type:Line Type
Frequency Response Range:20Hz-20KHz
Sensitivity:93dB
Communication/Connectivity:Wired
Line Length:105cm/41in
Connectors:3.5mm(1/8in)
Fit Design:In-Ear Only

Note:

1.please allow 1-3 cm/ 0.39-1.18 inch difference due to manual measurement and 3-5 g/ 0.007-0.01lb/ 0.11-0.18oz for the difference between different colors
2.due to the screen difference, the color may be a little difference from what you expect, please allow it

Packaged include:

1 x headphone