40-Hour Battery Life Once fully charged, the earbuds will sustain up to 9 hours of listening, and when charged multiple times with the case, they can support up to 40 hours of listening! IP54 Dust- and Splash-Resistance IP54 dust- and splash-resistance keeps the earbuds durable during workouts and in the great outdoors. 3 Hours of Music Playback on a 10-Minute Charge Charge the earbuds for 10 minutes before your commutes, and listen for as long as 3 hours. Robust Bluetooth 5.3 Connections Robust Bluetooth 5.3 connections keep sound and image in sync, for immersive viewing and gaming.