Let the music pulse through your temporal lobe with the Aerial7 Chopper2 Headphones. Quality sound exceeds expectations for the snobbiest of headphone snobs. The Chopper2 are compatible with all your tech gadgets so you can push weight at the gym, lock yourself in your room with your tunes, melt faces in the club, or get on a video conference with your long-distance partner. Product FeaturesMaterial: Driver: 44 mmFrequency Response: Input Connection: [3.5 mm], (iPhone) [3.5 mm]; [6.3 mm] 1/4 inCord Length: Weight: Recommended Use: bumping tunesManufacturer Warranty: limited lifetime