Why Choose Us ? Hoco. Brand - World famous. We have different retail stores in different countries all over the world. We are committed to providing premuim quality products and services to customers. Please purchase from our HOCO Offcial Store for original product. We provide 3 months money-back garantee and 18 months warranty with 7/24 customer service standby. Specification: - Frequency range: 20Hz-20KHz - Sensitivity: 99±3dB at 1kHz - Impedance: 32Ω - Driver size: 10mm - Plug pin: 3.5mm - Cord length: 4ft Earhook design,it will not easy to fall off even when you are running or doing sports. Ergo fit even you wear it for whole day. "L" type cable design, no need to worry about the cracking or broken about the headphone wire.Durable than other straight cable. Soft silicone eartip with earhook, comfortable and safe for your ear, we know that hard earphone does harm to your ear. HOCO M6 does the decent quality sound for the right price, it is impossible to request a 10 USD earphone reach the sound quality of 100 USD.M6 does what it should do and absolutely the best cost effective earphone. Limit stock with fast speed selling, ADD TO CART and ORDER YOUR SET right now before they are all gone.