Features:Digital display for 3 powers: The combination of appearance and power quantity digital display can display three power quantities at the same time.ENC call noise cancellation: Our algorithm combined with a deep neural network algorithm can suppress 75% of background noise and isolate voice.Professional dynamic horn: The high-quality graphene composite membrane driver unit is used, and the audio EQ created by a professional team is shocking in the bass, pure in treble, and clear in communication.Stable & waterproof: BT 5.3 empowers faster transmission and better stability. IPX4 waterproof can effectively resist water in daily use. (The charging case is not waterproof.)Reverse charging: The charging case can be used for charging the phone as a backup charging bank. Two charging cords of C-C and A-C are attached for users with different phone models.Specifications:Item Name: Mibro Earbuds 3 ProMain Material: Metal, ABSColor: BlackEarbuds:BT Version: V5.3Operation Distance: 10m/33ftDimension: 33.57*15.98*6.47 mmBattery Capacity: 40mAh (each earbud)Charging Time: Approx. 1.5 hoursMusic Time: Approx. 6.5 hoursInput Parameters: 5V 40mABattery Type: Li-lon PolymerEarbuds Weight: 3.75g (each earbud)Waterproof: IPX4Charging Case:Dimensions: 52.6*52.35*26.2 mmBattery Capacity: 2000mAhInput Parameters: 5V 1.2AOutput Parameters: 5V 100mACharging Time: Approx. 3 hoursBattery Type: Li-lon PolymerCase Weight: Approx. 52.7gPackage Information:Package Size: 12.5*9*3cmPackage Weight: 140gPackage List:2 * Mibro Earbud 3 Pro1 * Charging Case2 * Charge Cables6 * Eartips (M size has been pre-installed)1 * User Manual