TOUCH CONTROLS - Pause or skip & answer & end calls by a simple tap to the touch-sensitive surface NOISE REDUCTION - Fast response and high-fidelity sound picks up clear acoustics and deep bass while blocking outside distractions BLUETOOTH 5.3 - Experience rich, full-range audio played directly from any smart device with Bluetooth technology PORTABLE CHARGING CASE - Power Bank Case, Recharges your earbuds on the go. Case doubles as a portable power bank, letting you charge your devices as well.