Key FeaturesNoise-cancelling technologyULT buttonPrecise Voice pick-up technologyHear the smoothest audio without disruption thanks to the white WHULT900N from Sony. Experience all-day comfort thanks to the soft, oval-shaped earpads and adjustable headband, while the fold-down design and carry case keep them safe while not in use. The high-performance Processor V1 cancels significantly more noise, so you can immerse yourself in your music. Use the ULT button to choose between two new sound modes Deep and Attack Bass for powerful sound. Plus, Precise Voice Pickup technology isolates your voice and blocks out distractions during calls. Whats more, enjoy up to 30 hours of playback in Noise-Cancelling mode or up to 50 hours without.GeneralAdditional InformationVolume / Call handlingCharging port : USB-CBluetoothFeaturesNoise-cancelling technologyULT buttonPrecise Voice pick-up technologyProduct TypeHeadphonesBrown Goods & SDA FeaturesMicrophoneYesNois