1.57mm super power drive unit, turbine power cavity technology, combined with the blue string's iconic surging low-frequency shock, make the chest sound deep and enjoy the best sound effect. The tri-band is clear and transparent, so that all the sound details can be revealed. You can really hear the music that the artist wants you to hear, and concerts in coldplay or Linkin Park will ring in your ears.

2. The latest Bluetooth 4. 1 in the industry has excellent endurance and smooth communication. Bluetooth 4. 1, 72MHz high-speed operation, 16/32 bits CPU, rock-solid operating system, 40 hours of listening to songs, 45 hours of talking, and 1625 hours of standby (about 67 days) with super endurance. Acoustic echo suppression and noise reduction function can effectively reduce the environmental noise during the call, so that the wireless caller can't hear you clearly and become history, just like talking face to face.