Baseus B15 Double Wire Control Magnetic Attraction Bluetooth in-Ear sports Earphone with Remote Control and Mic, Latest Bluetooth V4.1 for stable connecting and power saving, in-ear design and good stereo sound bring you wonderful music experience, Built-in microphone for a high-quality hands-free phone call, Support connecting with two Bluetooth devices at the same time, Ergonomic arc appearance design can closely fit human’s ear canal, Eco-friendly TPE flat cable, more durable and anti-knotted, play/pause, volume up/down, next/previous song, answering/ending call.