The WeSC Maraca Headphones" thumping 40mm drivers and over-ear design deliver pure, powerful sound, while the square retro styling gives you a fresh look that"s far from ordinary. Product FeaturesMaterial: polymer, syntheticDriver: 40 mmFrequency Response: 20 Hz - 20 KHzInput Connection: 3.5 mmCord Length: 0.5 m; [extension] 1 mWeight: Recommended Use: rocking outManufacturer Warranty: