Industry-leading noise cancellation now even better! Sony WF-1000XM4 true wireless noise cancelling headphones with up to 12 hours battery life with charging case, optimised for Alexa and the Google assistant with built-in mic for phone calls. Every part of these headphones is newly-designed with a new Integrated Processor V1, new drivers with improved performance, newly designed noise-sensing microphones and innovative noise isolation earbud tips with a more stable fit, meaning 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: It 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. For total convenience, these Bluetooth headphones can be paired with two Bluetooth devices at the same time. So when a call comes in, your headphones know which device is ringing and connects to the right one automatically. Firmware update is required. Firmware will be available in November 2022. Headphone FeaturesConnection: true wireless. Bluetooth enabled for a wireless connection to your devices . Connects to devices via Bluetooth. With a USB-C connection. 6mm driver. In-line controls. Active noise cancellation. Carry case. Water-resistant. IPX4 splashproof. Compatible with universal smartphones. Batteries required 2 x Li-Ion battery (included) . Rechargeable battery. 12 hour battery life. 90 minute charging time. Fast charge to boost battery life. Charging case included. In the box: Charging Case, USB Type-C cable. General InformationModel number: WF1000XM4S. CE7. Manufacturer’s 1 year guarantee. EAN: 4548736121195.