GranVela&reg; A1 Foldable Stereo wired Headphones High Performance for iPhone 6,Samsung , Android Phones and Tablets(Red) HI PERFORMANCE: 40mm large drivers deliver powerful Bass and clear Treble.Balanced and high quality sound is proved by thousands of customers. COMFORTABLE : Soft leatherette earpads ensure comfortable wearing. The headband is Adjustable in length to fit all people. DETACHABLE CABLE3.5mm Detachable Cable makes it easy to replace and makes life of use longer. IN COLORS: Colors to choose.charming gift for kids and adults. Impedance:32ohm.Frequency response:20-20,00Hz.Sensibility:108+/-3dB