Featuring a mic and a button. These are rare and satisfying additions to budget-friendly Bulk earbud & in-ear headphones that normally dont have those functions. The multifunctional button is to play, pause, and prev-next tracks and for phone calls. Perfect for institutions. JustJamz earbuds available in large quantities provide a remarkably convenient solution for schools, libraries, museums, and any organizations that supply their visitors with affordable earbuds with microphone functions. Stereo sound. These earphones provide full audio depth and decent sound given their price. The quality of this earbud & in-ear headphones is perfectly enough to comfortably listen to a lecture or some music. For reasonably priced bulk ear buds (wired), these are surprisingly good. Ergonomic and widely compatible. The earbuds come with silicone earbud tips and anti-tangle flat cord. These earphones with microphone have the standard 3.5 mm audio jack compatible with most devices like smartphon