Bass Jaxx Spike stereo headphones with gold spikes. Adjustable headband and foldable design. Includes 3.5mm audio jack. Product description •go hard in these spike headphones! take calls, listen to music, and generally look fierce & fly every time you put them on. •spiked headphones feature inline microphone, high quality sound, adjustable headband & soft ear cushions, foldable design for easy travel. •specs: driver diameter: 40mm; impedance: 32 Ohms; frequency response: 20Hz - 20K Hz; sensitivity: 100 dB +/- 3 dB; cable length: 4.93 feet; plug type: 3.5mm stereo •compatible with iPhone®, iPad®, samsung galaxy®, android™ smartphones, tablets & other 3.5mm audio devices. (devices without a 3.5mm jack require an adapter. adapter not included.)