Bargz 3.5mm Stereo - Noise Cancelling Headphones - Omni-directional Headset with Microphone for Computer PC Laptop - Blue Color The volume is adjustable, you can adjust the sound to the proper volume to listen to the music or chat Switch and volume high and low wheel which is attached on the cable line This 3.5mm microphone headphone is ideal for use with notebook, PC, online chat and video conference and so on t can adjustable headband gives you comfortable wear feeling, with the function of noise cancelling and omni-directional microphone for clear voice pick-up. The length of the microphone earphone is adjustable, quite comfortable to wear