YINYOO OS1PRO Wired Earbud

1.Creative design acoustic resin OS1 HIFI headset with enhance the sound quality and exterior again the hybrid technology 2.Professional division of physical frequency quality tuning technology 3.The standard of independent patent technology silicon tips 4.The lower the internal resistance of professional wire , The design of human nature 5.graphpne dynamic ,give more details of music show 6.congenital advantage ,the experience is really HIFI! 7.Driver performance is tough ,bass bursts are more powerful Features: Model Number: OS1 PRO Driver unit: graphene dynamic Driver Diameter:10mm dynamic Impedance: 22ohm Sensitivity: 112dB/mW Frequency Response: 20Hz-20000Hz Length:120cm±2cm plug:3.5mm L plug pin diameter:0.75mm with mic/ Package include: earphones*1 pair silicone eartips*3 pair(S/M/L)(one pair is on the earphones) OS1pro original packing