https://www.theguardian.com/technology/2022/jan/07/invisible-headphones-to-chameleon-cars-standout-tech-from-ces-2022 > Mobile phone, TV, carmakers and other major players tout what’s new at the annual Las Vegas tech showcase > From colour-shifting cars to digital art TVs and stress-predicting watches, the annual Consumer Electronics Show in Las Vegas, which opened on Wednesday, offered its usual mix of wacky, visionary and desirable goods. Here are some of the highlights.