This earphone is lightweight and uses soft eartips, which will not not cause pain to your ears after long-time wearing. Using dual moving coils and high-sensitivity microphone, this earphone can bring you HiFi and stereo surround sound effect as well as HD-compatible calling experience. It is made of high-quality metal, ABS, TPE and silicone material. The length of this product is 120cm. With the adoption of universal 3.5mm interface, the earphone is suitable for many types of audio devices. Item Name: Wired Earphone Material: Metal, ABS, TPE, Silicone Model: X3 Style A: without Earphone Bag, B: with Earphone Bag Headphone Type: In-ear Headphone Noise Reduction: Passive Noise Reduction Playback Control: Yes Wearing Method: In-ear Earphone Output Source: Universal Plug Diameter: 3.5mm Plug Type: Straight Plug Whether Wireless Headset: Wired Headset With or Without a Microphone: Yes Sound Principle: Moving Coil Frequency Response Range: 20-20000KHZ Impedance: 8ohm Sensitivity: 96.7dB Distortion Rate: 1% Horn Diameter: 9mm Features: Mega Bass, Comfortable to Wear, HiFi Size Details: Length: 120cm/47.24"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: Style A: 1 x Wired Earphone or Style B: 1 x Wired Earphone 1 x Earphone Bag