The sound is powered by a 5mm driver in each ear, which is the same size as the impressive Sony LinkBuds S and smaller than the WF-1000XM4. Battery life is the only drawback, with 7.5 hours of use from each charge, though this is still on par with the best noise-cancelling earbuds. However, Sony notes that you only get one charge from the case, giving a total battery life of 15 hours.
The earbuds are IPX4 rated for waterproofing, making them suitable for light exercise. Sony’s app makes it easy to set different levels of ANC for different environments, and it can switch between them automatically.
