In-ear Earbuds Yinyoo KZ ES4 Extra Bass High Fidelity Earbuds with Microphone Balanced Armature Driver Hybrid Technology Earphones Headset Over Ear Noise Cancelling Headphones Wired Earhook(black mic)

1.Exclusive housing by acoustic resin material 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.A specially designed HD call microphone 6.The armature dynamic unit sound advantage complementary ,give more details of music show 7.Congenital advantage ,the experience is really HIFI! 8.Driver performance is tough ,bass bursts more powerful 9.es4 wired earbuds with a memory hook technology,solid ergonomic wear experience, Durable,the in-ear headphones make it easier to keep moving, providing comfort fit. Product features? Brand Name: KZ Model name: KZ ES4 Connectivity : Wired Driver unit: hybird 1BA With 1DD Vocalism Principle: Hybrid technology Resistance: 11 ohm Sensitivity: 104 dB/mW Frequency Response Range: 20-40000Hz Control Button: Yes Volume Control: No With Microphone: Optional Connectors: 3.5mm Line Length: 1.2m3cm What's in the box. 1 x KZ ES4 Earphones 3 x Earbud tips 1 x User manual Notice: 1. Please lower music volume before connecting earphones with audio devices to avoid earbud's diaphragm damage. and suggested to stop using earphones for a few minutes after every two hours. 2. This kz es4 iem earbuds with standard 3.5mm plug, pls kindly check your audio devices connector before your purchase. 3. Yinyoo Audio have the Formal authorization from KZ company , All products in Yinyoo Audio are original.Any problems, pls contact us freely.