Brand SSK Model EP-B002 Color Black + silver Material ABS (housing) + PVC (cable) Interface Type 3.5mm length 1.7 M Impedance 32 ohm Sensitivity 105+/- 5 dB Headphone Frequency Response 20~20000 Hz Features Speaker: 10mm; Active cancellation up to 12dB at 150~500Hz; Powered by 1 x AAA batteries (included); Active noise reduction; Extra soft comfortable ear pads; Easy adjustable headband; Small portable controller; Colloid soft cable provides the high durability; Effective speakers provide high fidelity sound quality; ON/OFF: Enable / disable reduce noise function; MONITOR: Hold can suspend music to hear outside voice release can continue to play music Warranty 12 months Packing List 1 x Headphones