Bluetooth Version: 5.0 Wireless Range: Up to 10 meters (33 feet) Frequency Response: 20Hz – 20kHz Impedance: 32Ω Sensitivity: 105dB Battery Capacity: 45mAh (earbuds), 300mAh (charging case) Music Playtime: Up to 4 hours (earbuds), up to 18 hours (with charging case) Talk Time: Up to 3 hours (earbuds), up to 12 hours (with charging case) Charging Time: 2 hours (earbuds), 1.5 hours (charging case) Water Resistance: IPX4
