Headset wireless, active noise reduction headphones, extraordinary quiet, excellent sound quality, pure low frequency sound effect, using high-quality 40MM moving-coil drive unit Wide frequency range, full of rich and delicate timbre The inside of the earmuffs adopts a concave structure, which greatly increases the space for ear movement, and there will be no sense of oppression when worn Built in 250mAh large capacity battery,the standby time up to 100 hours,the music play time up to 10 hours,you can enjoy your game or music for a long time..syi