Anker Life U2i (Upgraded) Wireless Neckband

10mm Graphene Drivers: Delivers music with a wider soundstage and exceptional accuracy & clarity. 1-Mic w/AI For Clear Calls: One microphone with AI & beamforming noise reduction helps to reduce background noise and amplify your voice Bluetooth 5.3 Up to 24 Hours of Total Playtime: Enjoy up to 24 hours of playback to power you through any workday IPX5 Waterproof & Sweatproof: Defend against sweat & liquids in any weather conditions Ergonomic Flexible Design: Made of ultra light materials and a bendable neckband with a contoured design Fast Charging: USB Type-C, charge for 10 minutes, listen for 3 full hours