Features: Soft ear hooks, 260° wrap aound ear design, one-piece molding, torsion-resistant and wear-resistant, rotatable and adjustable ear-hook shafts, comfortable to wear. Simple and streamlined design, lightweight and designed for movement, perfect for sports running workout exercise gym and more. After special processing, the sound is accurately captured, highly restored, and the sound details are presented, allowing you to sound immersive. Omni-directional noise-cancelling microphone, multiple noise-cancelling, clear calls even in noisy environments. Built-in microphone, integrated intelligent wire control, K song call can be switched freely. Standard 3.5mm plug, electroplating process, for iOS/Android/for Windows system, tablet, phone, desktop computer and notebook computer, etc. Specifications: Product Name: ear-mounted music headphones Item Model Number: E01 Plug Diameter: 3.5mm Frequency Response Range: 20-20000 (Hz) Impedance: 32Ω Sensitivity: 117dB Distortion Rate: 2% Earplugs/earmuffs Material: sponge Headphone Cable Material: TPE Plastic Color: Black Type: Single 3.5mm Jack, Dual 3.5mm Jack(optional) Speaker Diameter: about 30mm/0.11" Cable Length: Approx. 1.2m/3.93ft Package Includes: 1 Piece Sports Wired Earphone note: The mobile version is a single 3.5mm jack, 3.5 dual-plug version is for computer. Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.