The best in noise cancelling¹ with two high-performance processors and feedback microphones 1. As of April 10, 2023. Environmental noise reduction according to Sony Corporation research. Measurements are performed in accordance with JEITA standards for the top 10 brands (based on market share) in the market for "True Wireless" style noise cancelling hearing aids. High quality ergonomic design for a stable and comfortable fit Impressive sound quality with a specially designed diaphragm unit Waterproof and long battery life (up to 24hs²) for daily use 2. 8 hours (plugs) + 16 hours (charging case), totaling 24 hours when using Noise Cancelling and Bluetooth. 12 hours (plugs) + 24 hours (charging case), totaling 36 hours when using Bluetooth with Noise Cancelling off. Superior calls with bone conduction sensor and noise reduction system (with artificial intelligence) The best truly wireless noise cancelling headphones on the market. Battery life up to 8 hours (24 hours with case) Quick charge: 3 min. Up to 1 hour listening. Amazing sound quality with high resolution audio. Sony The best call quality with AI-based noise reduction algorithm and bone conduction sensor. Small, lightweight and beautifully designed. Smooth switching and a clear Bluetooth signal with a powerful built-in V2 processor. Adjust to the world around you with adaptive sound control, using AI to deliver the ideal listening experience. Talk and only hear the ambient sound using Speak-to-Chat, which stops music when you start talking. Water resistant for daily use, so splashes and sweat won't stop you. Designed with the environment in mind with the construction of recycled plastic materials and 100% paper packaging.