Features: Earbuds provide clear, top studio-quality performance HiFi sound music . Adopt 10mm dual-cavity dynamic driver, and 4 kinds tones adjustable Earbuds with built-in microphone(optional), you can talk on the phone anywhere and any for time-, free your hands! These headphones provide high-fidelity sound, allowing you to better in the music during sports and exercise. Great for gaming smartphones, Pad, MP3 players, music speaker, and most other interface- devices with 3.5mm headphone socket. Specifications: Model: 3.5mm KZ D-Fi Wired Earbuds Type: Standard / Tone Adjustable Version (Optional) Microphone:With Microphone / Without Microphone (Optional) Headphone Type: in-ear Headphones Headphone Output Audio- Source: HiFi Plug-Diameter: 3.5mm Frequency Range:approx 7Hz-45Khz Color: Black as pictures Cable Length:approx 120cm/47.24in Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1PC x In-ear Headset