Part of the Sport collection In-ear/ear bud style headphones offer excellent portability and enhanced noise isolation Truly wireless design is powered by Bluetooth 5.3 technology for efficient wireless connection Adaptive ANC (active noise cancellation) for sports to effectively block out ambient noise 11mm drivers provide rich audio experience Built-in mic lets you enjoy hands-free communication IP68 Sweatguard waterproof rating improves durability and makes these earbuds suitable for workouts 12 hours playback time for long distance sport and 48 hours for the total playtime, allows for extended usage without worry much about recharging and related hassles New adaptive hook design improves overall convenience