Balanced sound centres, crystal-clear highs with 40mm audio drivers for a deep, intense hi-res sound profile. Even frequencies of up to 40 kHz are covered. Effectively reduces up to 95% of all external noise, such as cars and planes - ideal for music when travelling or in noisy environments.Transport for aircraft noise, outdoor for road traffic and wind, and 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 another 4 hours of music within 5 minutes. The Life Q30 headphones' velvety-soft ear pads made from resilient foam, integrated into soft leather, give you flexible comfort when working or listening to music.