Hi-Res Audio Certified: Life Q20 active noise canceling headphones have custom 40 mm dynamic drivers to produce Hi-Res Audio with extended high frequencies for extraordinary clarity and detail. Reduce Ambient Noises By Up to 90%: Immerse yourself in music while 4 microphones and a digital ANC algorithm detect and cancel out low and mid-frequency noises such as cars and airplane engines. 100% Stronger Bass: Exclusive BassUp technology conducts real-time analysis of low frequencies to instantly strengthen bass output. Double press the play button when listening to bass-heavy genres for an amplified listening experience. 40-Hour Playtime: Up to 40 hours of playtime in wireless active noise cancellation mode (at 60% volume) is extended to an enormous 60 hours in standard music mode. Charge Life Q20 active noise canceling headphones for 5 minutes and listen for 4 hours. Enhanced Comfort and Noise Isolation: Life Q20 active noise canceling headphones feature memory foam earcups covered in protein leather that fits around your ears. Rotating joints adjust the angle of the earcups.