NEW Specifications [Up to 40 hours of battery life] Once fully charged, the earbuds will last up to 9 hours of listening, and when charged multiple times with the case, they can support up to 40 hours of listening! [Small and comfortable to hold] Each earbud weighs less than 3.8g, and is designed to create a snug fit thanks to over 300,000 ear canal samples and comfortable simulation-based analysis. [3 hours of music playback when charged for 10 minutes] Charge the earbuds for 10 minutes before heading out, and listen for up to 3 hours. [IP54 dust and splash resistant] IP54 dust and splash resistance keeps your earbuds durable during workouts and great outdoors. [Connection via strong Bluetooth 5.3] Strong Bluetooth 5.3 connections keep audio and video synchronized for immersive viewing and gaming. Condition: New