1.[10mm Magnetic Driver Provides More for Your Music]CS2 Dynamic Driver adopts magnetic design. This newly designed magnet increases the magnetic flux by 55% - close to 1 . This leads to improvements in resolution, dynamics and speed.2. [Custom tuning of commercial music] Impactful and dynamic , clean and transparent midrange and atmospheric, crystal clear high frequency. Take your music enjoyment to the level.3. [Imported Polycarbonate Shell]Our experienced acoustic engineers start with a silicon crystal composite bio-cellulose diaphragm suitable for the driver. What follows is the painstaking process of adjusting the chambers inside the case. We go to great lengths to select the most suitable tin-silver bonding wires. Every step we take brings you closer to perfection. Your journey to audio excellence begins with CS2.4. [Ergonomic Design]The pre-shaped ear hooks fit around the helix and socket to stability and comfort. Proper ear fit will effectively reduce external noise for optimal isolation.5.[New and improved 2 Pin type connector gold-plated contact pins]From reviews and customer feedback, the new and improved 2 Pin connectors can effectively protect the contact pins from accidental damage, thus providing users with a longer service life and better wearing stability.Product Name: CS2 Dynamic HeadphonesModel: CS2Headphone Type: In-earWearing : around the earImpedance: 22ohmHeadphone Sensitivity: 118dB/mWFrequency range: 20-20000HzPlug Type: 3.5mmCable length: 1.25mWhether with line: yesHeadphone jack: 2Pin jackWith or without a microphone: noWhether the wire can be replaced: YesDrive unit: 1DD dynamic monitor unitColour:BlueMaterial:ABS+MetalPackage Contents:1 pair x earphones 1 x earphone cable3 pairs x ear capsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.