Specifications: Brand Name: QKZ Model Number: AK6 Pro Type: Dynamic drivers earphone Frequency Response: 20-23KHz Resistance: 16Ω Sensitivity : 98dB Plug: 3.5mm Gold-plated Needle Diameter: 2pin 0.75mm Microphone: YesIn-line Remote: Yes Colour: Blue Purple, Green, Transparent Black, Transparent White (optional) Cable Length: Approx 1.2m Package Size: 11.8 x 7 x 4cm/4.64 x 2.75 x 1.57in Package Weight: 76g/2.68oz Package List: 1 x QKZ AK6 Pro Earphone 2 x Pairs of Earcaps 1 x User Manual