Huawei 6i earbuds are self-explanatory. Very smart noise cancellation: ANC 3.0 technology efficiently isolates street and cafe sounds. Powerful and bassy sound: An 11mm sound driver gives you deep and clear bass. Hero battery: Up to 35 hours of playback with the charging case. Rocket charging: 10 minutes of charging gives you 4 hours of use. Clear calls: 3 smart microphones isolate wind and noise during calls. Dual connection feature: Connects to two devices at the same time (e.g., phone and computer). Sweat and water resistant: IP54 standard for sports and the gym. Color: White Condition: Used