Overview: Listening to music is a perfect way to relax and enjoy ourselves. KZ ZS10 Pro headphone offers you the ultimate enjoyment in style, comfort, and listening pleasure. Its in-ear design greatly provides excellent attenuation of ambient noise and gives you perfect sound quality. Comfortable Wearing Experience: In-ear headphones with 3 sizes of self-designed acoustic earcaps fit ear well, providing a long time comfortable wearing experience and great sound isolation. Detachable Replacement Cable: 2pin 0.75mm gold-plated needle plug design cable, detachable and replaceable. You can upgrade it with BT module (NOT included) and change it into BT headset. DIY your unique earphones. One Button Control with Mic: One button control with Microphone conveniently controls the music and calls, easy to operate playing/pausing music, answering/ending calls, previous/next track. Strong Compatibility: 3.5mm gold-plated jack prevents oxidation and reduces signal loss, providing better audio restoration. Fits for almost all 3.5mm audio devices. Specifications: Brand Name: KZ Model Number: ZS10 Pro Drive Unit: 2DD+8BA hybrid driver unit Frequency Response: 7-40KHz Resistance: 30Ω Sensitivity: 111dB Plug: 3.5mm Gold-plated Pin Type: 0.75mm Microphone: with or without (optional) Color: Black, Purple, Blue, Glare Blue, Glare Gold (Optional) Cable Length: approx. 1.25m/4.10ft Package Size: approx. 10.2*7.3*3.2cm/4.01*2.87*1.26in Package Weight: approx. 88g/3.10oz Package List: 1 * KZ ZS10 Pro Earphone 3 * Pairs of Earcaps 1 * User Manual (English)