Sony WH-1000XM4 Noise Cancelling Wireless Headphones - Optimised for Alexa and the Google Assistant - with built-in mic for phone calls - Black & ASUS Bluetooth 5.0 USB Adapter by Amazon.co.uk

• Product 1: Industry-leading noise cancellation, powered by our HD Noise Cancelling Processor QN1 (Disclaimer in description)

• Product 1: Premium sound quality - these Bluetooth headphones support High-Resolution Audio, and even compressed music files are upscaled using our evolved DSEE Extreme technology.

• Product 1: Speak-to-Chat automatically pauses playback when you start a conversation, Wearing Detection powers off your headphones when you're not wearing them, plus more smart features for a seamless, hands-free listening experience.

• Product 1: With multipoint connection, your Sony headphones can be paired with two Bluetooth devices at the same time. Bluetooth version: 5.0 and frequency range: 2.4GHz band (2.4000GHz-2.4835GHz)

• Product 2: Bluetooth 5.0 for Faster, Further Coverage- Transfer data up to twice as fast as before, and with 4X the range in BLE

• Product 2: Wireless Connection, free of limitation - Enables wireless communication with Bluetooth-enabled devices

• Product 2: Full Compatibility - Backward compatible with Bluetooth2.1/3.x/4.x

• Product 2: Power Saving for Devices - Bluetooth Low Energy technology for energy-saving wireless connectivity