10mm Drivers with boAt Signature Sound: Experience powerful sound with the boAt BassHeads 211 Wired Earphones, equipped with 10mm dynamic drivers that deliver punchy bass with boAts Signature Sound. Whether you're deep into a binge-watch session or catching up on podcasts, every beat hits just right.Built-in Microphone: Answer calls on the move with the in-line mic that makes communication smooth and hands-free, ideal for everything from meetings to quick chats with friends.Multi-Functional Control Button: Take control of your music and calls using the convenient multi-functional button. Play, pause, or attend calls without missing a moment.