Marshall Major IV Bluetooth Headphones80 Hours of Playtime Major IV bluetooth headphones provide 80+ solid hours of wireless playtime with quick charge capability only 15 minutes of charging will give you 15 hours of listening. Marhsall headphones are truly built for the long haul. Ergonomic Headphone Design Marshal IV have designed ergonomic bluetooth headphones so when youre deep diving into your music, the tenth hour is as comfortable as the first. Major IVs headphone ear cushions are