Sony WH1000XM4B Noise Cancelling Wireless Headphones 30hr Battery Life Over Ear Style Optimised for Alexa and Google Assistant Builtin mic for Calls Black

Noise cancellation powered by HD Noise Cancelling Processor QN1 Sound quality these Bluetooth headphones support ideal Resolution Audio and even compressed music files are upscaled using evolved DSEE Extreme technology SpeaktoChat automatically pauses playback when one start a conversation Wearing Detection powers off headphones when not wearing them plus more smart features for a seamless handsfree listening experience With multipoint connection Sony headphones can be paired with two Bluetooth devices at the same time Bluetooth version 50 and frequency range 24GHz band 24000GHz24835GHz Effective Range Line of sight approx 30ft 10m Driver Unit 40mm dome type CCAW Voice coil Plug Goldplated Lshaped stereo mini plug Cord Length Headphone cable approx 12m OFC strands goldplated stereo mini plug.