Charging Time for Earbuds : About 2hrs
Voice-Controlled AI: Yes, Siri & Google Assistant
Battery of Charging Case : 2200mAh capacity charging case provide about 17 times additional charging for 2 earbuds and use for emergency charging to any smartphone.

Earbuds Specification :
Battery Type : Lithium Polymer Battery
Voltage : 3.7V (under normal condition)
Lifetime : ?300 times
Capacity : 45mAh + 45mAh
Talk Time: Up to 8-9hrs
Music Playback Time : Up to 8-9hrs
Standby Time : Up to 100hr
Speaker :6φ mm