Ear buds+-- flexible, secure- fit earhooks and ergonomic cavity maximize comfort and stability, for running, gym, workout and vigorous exercises. Over ear -- fit for all major 3.5mm jack of audio player or smartphone and tablet. Subwoofer earphones-- in-line control, convenient to control hands, to answer or end calls, adjust tracks and volume. BRIGHTFUFU Wired Earphone Phone Headset for Cell Phone Wired Over The Ear Color: As Shown Size: 9*4cm Ear buds+-- flexible, secure- fit earhooks and ergonomic cavity maximize comfort and stability, for running, gym, workout and vigorous exercises. Over ear -- fit for all major 3.5mm jack of audio player or smartphone and tablet.