Pure Bass: Big, bold bass you can feel, Powerful 12.2 mm drivers, Great sound isolation Comfort fit: Slim, stable in-ear fit, Ergonomic design for max comfort Convenience: Remote control for hands-free calls and music. Philips Black In-Ear BASS+ Headphones with Mic BASS+ earphones deliver great sound isolation and wearing stability 12.2 mm drivers are specially tuned and bass vents produce ultra-low end frequencies to create a unique BASS+ sound signature Slim in-ear design that attaches perfectly to your ears, each earphone sits securely for great stability that won't fall out Ergonomically designed with oval and angled tubes for a comfortable, natural fit Designed for optimal passive noise isolation, this in-ear fit ensures you never miss a beat of your music An easy-to-use remote control allows you to go handsfree as you play or pause tracks and answer calls with a simple push of a button Comes with extra ear buds