Sony WF-1000XM4 True Wireless Noise Cancelling Headphones - Up to 24 hours battery life with charging case - Optimised for Alexa and the Google Assistant - with built-in mic for phone calls – Silver

Industry-leading noise cancellation* - 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.

Smart feature – Speak-to-Chat: Speak-to-Chat automatically pauses the music on the 1000XM4 and lets in ambient sound so you can conduct a conversation – handy if you want to keep your headphones with mic on, or your hands are full. Frequency response(Bluetooth communication): 20Hz - 20,000Hz(44.1kHz sampling) / 20Hz - 40,000Hz(LDAC 96kHz sampling, 990kbps)

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 8 hours, with the charging case providing a further 16 hours. With noise cancelling off, it’s even longer – 12 hours of power on a full charge, with a further 3x charges from the charging case, for up to 36 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!