Key Specifications & FeaturesDesign Factor: Ergonomic open-ear hook style built for sports, workouts, and running stability.Audio Technology: Features Analog Noise Reduction / ANC to minimize background ambient sound.Connectivity: TWS Bluetooth 5.0 wireless upgrade for automatic fast-pairing when taking them out of the charging box.Display Elements: A built-in LED battery percentage indicator right inside the clamshell charging case