You get two great headphones from Bose... the QuietComfort 35 Over-ear Bluetooth Headphone & the QuietControl 30 Bluetooth In-ear Headphone. The QC 35 Over-ear headphone brings you world-class noise cancellation, which makes quiet sound quieter and music sound better. Volume-optimized EQ for balanced audio performance at any volume and 20-hour battery life per charge; up to 40 hours in wired mode. The QC 30 In-ear headphone allows controllable noise cancellation with Bluetooth and NFC pairing. Features a lightweight neckband design for all–day wear with up to 10–hour battery life per charge.