KZ Acoustics ZS4 Wired Earphones with Microphone, Powerful Bass

ZS4 earphones are superb providing great bass, clean treble and mids. These units are very comfortable and light weight. The ZS4 features a two pin detachable/interchangeable cable. An optional bluetooth cable is available for example. Three different sized earpieces and the unique design provide excellent noise isolation for these in ear monitors. "Clear and vibrant sound with punchy bass" Comfort Rating A Build Quality A Performance A Impedance 18 Ω Connector 3.5mm gold plated Microphone Noise Cancelling Frequency Response 7-40,000 Hz. Sensitivity 104 dB Cable Length 3.9 ft. Driver Dual Hybrid 8mm and Balanced Armature Cable .75mm, 2 pin gold plated plug   Whats in the package: 1 set earphones with mic 3 sets ear pieces User guide