https://www.theguardian.com/technology/2021/jan/25/sony-wh-1000xm4-review-bose-beating-noise-cancelling-headphones > Top sound, noise-cancelling and comfort with long battery life, plus connection to two devices at once > Sony’s top of the line noise-cancelling headphones have long had a winning formula and the latest edition has a much-requested addition – multiple device connectivity – to make them the best of class.