(Mi In-Ear Headphones Basic Black) : Give your ears a treat: These headphones adopt our well-loved piston design that's been known to deliver on superior sound quality and bass performance. Robust and lightweight, they are made with strengthened polycarbonate for ultimate wearing comfort so you can stay plugged in for hours without missing a beat. (Mi In-Ear Headphones Basic Silver) : Your favorite and lighter design, high-strength, pure cooper voice coil, damping system absorbs noise, durable, break resistant, Kevlar fiber cable.