BE990M have a seamless wireless experience . The Bluetooth 5.0 chipset ensures you can effortlessly switch between music and calls for a longer duration. It provides up to 12 hours of playback time on a single charge, fast charging capability & 290 hours of standby time. It is IPx5 Water Resistance Certified to combat sweat and moisture during strenuous physical activities. It has exceptional clarity, sharp sound & dynamic stereo output.