Wireless Bluetooth 5.0 Mini Earbuds

Specifications: BT Version: BT5.0 Transmitting Distance: 10m/33ft BT Protocol: HFP, A2DP, HSP, AVCRP Frequency Range: 20-20000Hz Sensitivity: 98dB Impedance: 16O Waterproof: IPX5 Charging Box Capacity: 3.7V 450mAh Earphone Battery Capacity: 2 * 3.7V 50mAh Music Play Time: about 4 hours (depends on music volume) Charging Time: about 1.5 hours for earphones, 2 hours for charging box Color: Black Earphone Item Size: 25*30*26mm Earphone Weight: 3.5g/0.14oz (Each Earbuds)