Astrum Compact Stereo Black Headphone + Mic

Super slim feather weight headset with mic is perfect 
lovers of simplicity and style, with soft padded ear cushions 

Features
- 3.5mm stereo plugs for smart devices & PC
- Noise cancelling mic for receiving calls
- Twistable soft padded ear cups & adjustable headrest
- White drivers for quality bass
- Best for smart phones, tablets & PC

Specifications
- Interface: 3.5mm stereo plug
- Type: Open air, dynamic
- Impedance: 16 ohms at 1KHz
- Mic: -95+-5db
- Driver Unit: 30mm
- Cable: 1.2m (approximate)
- Power Input: 70 - 80mw
- Frequency: 20Hz ? 20KHz