Sony wireless design, with industry leading noise canceling powered by Sony’s proprietary HD Noise Canceling Processor QN1e. That's up to 24 hours of noise-free listening. With noise canceling off, it's even longer — 8 hours of power on a full charge, with a further three charges from the charging case, for up to 32 hours of play time.That's up to 24 hours of noise-free listening. With noise canceling off, it's even longer. ( The Headphones comes Without Box) ( Used - As new)

Features & details
Digital noise canceling: Industry leading anc lends a personalized, virtually soundproof experience. Phone call: A built-in mic enables you to take hands-free calls
Product Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ears
24bit Audio signal processing delivers dramatically improved sound quality
Battery life up to 24 hours with carrying case (with 10min quick charge for 90min of play time).Note:If you face issue in Bluetooth connectivity please turn off the Bluetooth function for a couple of minutes, then turn it back on
Easy and clear hands free calling; Leave your phone where it is, just speak with a double tap to the earbud
Truly wireless design with uninterrupted L/R simultaneous Bluetooth transmission
Alexa enabled for voice access to music, information, and more. Activate with a simple touch
Smart listening by adaptive sound control automatically switches to ambient sound mode based on your activity
Quick attention mode and wearing detection make conversations effortless
Sony, headphones connect app for Android/iOS to use smart listening technology to control your ambient sound settings.