All GEMTONES models are packed with features usually only found on earbuds costing hundreds of dollars more, such as a customizable smartphone app, two-year warranty, four sizes of silicone eartips (XS, S, M, L), Bluetooth® 5.3, two microphones, assignable touch controls, locking volume (dB) limiter, four EQ profiles, in-app earbud finder, super sweat & water resistance, and USB-C charging (cable included).