Fast shipping +Free tracking number, 3.5mm Stereo Headset Headphone with Microphone Red Compact and lightweight . Switch and volume high and low wheel which is attached on the cable line . This microphone headphone is compatible with all audio devices with 3.5mm jack port This 3.5mm microphone headphone is ideal for use with notebook, PC, online chat and video conference and so on . It delivers excellent audio clarity . Enjoy the maximum music experience with this earphone The length of the microphone earphone is adjustable, quite comfortable to wear . The volume is adjustable, you can adjust the sound to the proper volume to listen to the music or chat Microphone: 6 x 5 / 58  2DB.... Frequency: 20 - 20000HZ.... Sensitivity: 105dB.... Resistance: 32 / ohm Cable length: 2 - 3M.... Max. input power: 80mW.... Interface: 3.5stereo.... Horn: F40mm