Sony WH-ULT900NB - ULT WEAR - Bluetooth Enabled Headphones with ULT POWER SOUND, Ultimate Deep Bass, Noise Cancelling, Clear Call Quality, Up to 30hr Battery Life, IOS & Android - Black Drip Coffee Maker Sound Field Optimisation automatically calibrates

Sound Field Optimisation automatically calibrates this cinema-like surround sound to suit your unique environment using built-in microphones

you can have a complete meal ready in under half the time

so you can carry on with your day

secure-fitting silicone earbuds

Sony WH-ULT900NB - ULT WEAR - Bluetooth Enabled Headphones with ULT POWER SOUND, Ultimate Deep Bass, Noise Cancelling, Clear Call Quality, Up to 30hr Battery Life, IOS & Android - Black Drip Coffee Maker Sound Field Optimisation automatically calibratesIntroducing ULT WEAR: Featuring huge, powerful bass, next level clarity, and seriously impressive noise cancelling, take the ULT POWER SOUND experience, wherever you go. At the tap of the ULT button, these headphones offer two unique sound settings to deliver exhilarating audio experiences for the power sound obsessives: Deep Bass, which adds huge resonating depth to the lower frequencies, and Attack Bass, bringing impressive drive and energy to the