In-ear earphones: powerful high- performance moving coil , achieving higher sensitivity and wider frequency response. Wired earphones: in- line control, convenient to control hands, to answer or end calls, adjust tracks and volume. Color: As Shown Size: 9*4cm CAXUSD with Game for Wired Phone in Wireless Headphone Ear Sports Small Mic Mm Eat Subwoofer Earbuds In-ear earphones: powerful high- performance moving coil , achieving higher sensitivity and wider frequency response. Wired earphones: in- line control, convenient to control hands, to answer or end calls, adjust tracks and volume. Frequency response earphones: in-line control, convenient to control hands, to answer or end calls, adjust tracks and volume. Tablet earphones: fit for all major 3.5mm jack of audio player or smartphone and tablet.