Product features - Charging case doubles as 400mAh powerbank — charges earbuds up to 4x - Bluetooth 5.0 with auto-pairing and auto power-on for quick connections - Built-in music controls and dual microphones for hands-free calls - Ergonomic ABS design with 3 sizes of rubber tips for a secure fit - Includes Micro USB charging cable; ~2 hours playback per earbud charge Care instructions - Unplug charger first. Wipe the dust or any dirt off gently with a clean, dry cloth.