EP261B Simple， fashional and exquisite design offers users convenience. Ideal for voice and video chat， music， PC gaming， movies， and voice recognition. Compatible with portable music player. Unique design. With a balanced voice performance， comfort the sponge padand stylish appearance， this earphone becomes the first choice of game players. Frequency response 20-20，000Hz. Speaker size: 10mm . Impedance: 16Ohm. Sensitivity: 95dB. Cable length: 1.2m . 3.5mm connecters plug jack.                     Package Details Weight: 56.71 g Size: 17*8*3 cm Package Includes 1 × Kanen KM-902 Portable Stereo In-ear Earphone 4 × Earcaps