Perfect for a life on the go, these headphones deliver a remarkable, noise-free audio experience. Signal processing technology reduces annoying background noise up to 95% while 30mm drivers with high-energy magnets deliver quality sound with solid bass. Pressure-relieving ear cushions provide long-term comfort. Swiveling earcups fold compact for easy portability. Battery requirement: 1 AAA - included. Also includes in-flight plug adapter.