Anker Soundcore Life U2i( “upgraded)” Wireless Headphones are an upgraded version of the popular Life U2 model, designed for comfort and portability with a neckband style and lightweight, foldable build. They feature 10mm dynamic drivers with BassUp technology for enhanced bass and clear sound, and AI-enhanced microphones for superior call quality. With an IPX5 water-resistant rating, these headphones are suitable for workouts and outdoor activities. They offer up to 22 hours of playtime on a single charge, and a quick 10-minute charge provides up to 3 hours of listening time. Bluetooth 5 ensures a stable and efficient connection, making these headphones ideal for various activities, from working out to commuting.