Soundcore Anker Life Q20 Hybrid Active Noise Cancelling Headphones, Wireless Over Ear Bluetooth Headphones, 70H Playtime, Hi-Res Audio, Deep Bass, Memory Foam Ear Cups, Travel, Office Incredible Sound Loved by 20 Million+ People Hi-Res Audio: Custom oversized 40 mm dynamic drivers produce Hi-Res sound. Life Q20 active noise canceling headphones reproduce music with extended high frequencies that reach up to 40 kHz for extraordinary clarity and detail. Reduce Ambient Noises By Up to 90%: Our team of engineers conducted more than 100,000 tests in real-life scenarios to fine-tune Life Q20’s 4 built-in ANC microphones and digital active noise cancellation algorithm. As a result, the hybrid active noise cancellation can detect and cancel out a wider range of low and mid-frequency noises such as cars and airplane engines. 100% Stronger Bass: Our exclusive BassUp technology conducts real-time analysis of the low frequencies to instantly strengthen the bass output. Double press the play button when listening to bass-heavy genres like EDM and hip-hop for an amplified listening experience. 70-Hour Playtime*: Up to 50 hours of non-stop playtime in wireless active noise cancellation mode (at 60% volume) is extended to an enormous 70 hours in standard music mode. A single charge gives you enough juice to listen to over 600 songs or soundtrack multiple long haul flights. In a rush? A 5-min charge = 4-hrs listening time!