Industry-leading noise cancellation1 now even better! Our new Integrated Processor V1, specially developed new drivers with improved performance, newly designed noise sensing microphones and innovative Noise Isolation Earbud Tips mean the WF 1000XM4 earbuds cancel out more noise than ever! Hi-Res Audio Wireless with LDAC The WF1000XM4 earphones support Hi-Res Audio Wireless thanks to LDAC. Even compressed music files are upscaled, with our evolved DSEE Extreme technology by delivering a richer, more complete listening experience. Up to 24 hours battery life & Quick charging On a full charge with noise cancelling on, the headphones offer 6 hours with the charging case provides a further 16 hours. With noise cancelling off, it’s even longer 8 hours of power on a full charge, with a further 3x charges from the charging case, for up to 32 hours of play time. Precise Voice Pickup technology for clear hands-free call​ Precise Voice Pickup technology, uses beamforming microphones and a bone-conduction sensor to allow the WF-1000XM4 microphone to pick up your voice clearly and accurately for hands-free calls at home, in a café or wherever you are Up to 24 hours battery life & Quick charging On a full charge with noise cancelling on, the headphones offer 6 hours with the charging case provides a further 16 hours. With noise cancelling off, it’s even longer 8 hours of power on a full charge, with a further 3x charges from the charging case, for up to 32 hours of play time. IPX4 water resistance As an added bonus, with an IPX4 water resistance rating, splashes and sweat won’t stop the WF1000XM4 earbuds! 1 As of April 26th 2021. According to research by Sony Corporation, measured using JEITA-compliant guidelines in Truly Wireless style noise cancelling headphones market.