V7 HA510-2NP Deluxe Stereo Headphones with Volume Control Connectivity Technology: Wired Ideal for listening to music, videos, presentations, and online PC gaming Digital studio sound quality from 40 mm drivers that deliver frequency response of 20Hz - 20KHz Soft foam ear-pads and adjustable headband for the perfect fit and comfort Works with MP3 players, CD players, or any device with a 3.5mm audio out Features In-line volume control for ease of use Ideal for listening to music, videos, presentations, and online PC gaming Digital studio sound quality from 40 mm drivers that deliver frequency response of 20Hz - 20KHz Soft foam ear-pads and adjustable headband for the perfect fit and comfort Works with MP3 players, CD players, or any device with a 3.5mm audio out Features In-line volume control for ease of use .