Earbuds with Microphone, in Ear Headphones with Volume Control, Built-in Mic Wired Earphones for Android Smartphone Tablet Laptop 3.5mm Audio Plug Devices, Black

Overview of earphones:
1. Answer/hang up call:
When there is an incoming call, press button controller once to answer it and end it after conversation, or use your mobile phone to answer/end it.
2. Reject a call:
When there is an incoming call, long press button controller once can reject the call, or use your mobile phone to reject it.
3. Music play/pause:
Press button controller once to play/pause music.
4. Track music:
Next song-press controller twice continuously, previous song-press controller three times continuously.

Q&A:
1. What devices it is compatible with?
The earphones are compatible with most 3.5mm audio port smartphone and audio devices.
2. What material is the headphone cable?
The cable is oxygen free copper wire which provides a superior eletrical conductor to aluminum because it does not expand or contract with heat and can carry higher current loads.
3. Are they noise cancelling?
Yes, they are. The nozzies are pretty thick given there are two speakers in the nozzie itself. If they fit well they do a good job of noise isolation.
4. Does the earphone have mic and volume control function?
Yes, the earphone have adjustable buttons professionally designed for mobile phones, it also can answer/hang up/reject calls, play/pause/track music.

Frequency rang: 20Hz-20000Hz
Sebsitivity: 102±3db
Audio jack: 3.5mm (Gold plated)
Impedance: 32?±20%
Distortion: 3% (1khz/1mw)
Color: black
Cable length: 3.9_ft
Rated power: 3mw
Maximum power: 5mw

Packaging Detaills:
1 pc earphone
1 cable clip
1 earphone box
Note:
Some devices do not support the volume +/- function. If you are not sure whether your device is available, you can contact our customer service staff for your professional answers.