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. 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. Exquisite Design: Made of Aluminum alloy shell and imported resin material for a refined touch and look. Durable, exquisite, texture and fashion streamline aesthetics coexist. 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)