ADVANCED BLUETOOTH 5.0 Mpow Flame adopts the latest Bluetooth 5.0 technology for more stable connection and stronger signal transmission. It supports various Bluetooth-enabled devices and you can stay connected to 2 Bluetooth devices at the same time ● IMMERSIVE SOUND WITH POWERFUL BASS With 11mm dynamic drivers, built-in cVc6.0 noise canceling microphones and chip of SBC & AAC audio, Mpow Flame provides the fantastic sound quality with powerful bass sound and crystal-clear voice calls at any volume. The vocals won't blend together with instruments. Choose the suitable eartips(XS/S/M/L) to get a better sealing and listening experience for intensified workouts ● IPX7 WATERPROOF FOR WORKOUT IPX7 waterproof shell and interior Nano-coating technology protect Mpow Flame effectively from heavy rain or sweat during intense workouts and all-weather conditions. Perfect for running, jogging, hiking, yoga, exercises, gym, fitness, traveling and etc ● 7-9 HOURS PLAYBACK Built-in improved polymer lithium battery, Mpow Flame offers 7-9 hours of superior audio performance / talk time after only 2 hrs charge. And it will show the remaining battery power of the headphones on your Phone screen. (Note: Please use the charging cable provided on the package) ● COMFORT AND SECURE FIT With Lightweight and ergonomic design, Mpow Flame is a great combination of comfort and stability with ear-hook and in-ear fitting designed for strenuous workouts