Balanced mid-tones and crystal-clear highs with 40 mm audio drivers deliver a deep, intense Hi-Res sound profile. Frequencies of up to 40 kHz are even covered. The headphones effectively reduce up to 95% of all external noise, such as cars and airplanes, making them ideal for music while traveling or in louder environments. They provide transport for airplane noise, outdoor for road traffic and wind, as well as indoor for office noise and background conversations – the perfect solution for every situation. Enjoy 40 hours of wireless playback time in noise isolation mode or even 60 hours of playtime in standard mode. And if you're in a hurry, your headphones can be charged for 4 more hours of music in just 5 minutes. The velvety soft ear cushions made of memory foam in the Life Q30 headphones, integrated with soft leather, offer you flexible comfort while working or listening to music.