Volkano Cove Series ANC + Dual ENC True Wireless Earphones with Carry Case

Bluetooth Version:  V5.4
Bluetooth Distance:  10m
Sensitivity(Speaker):  105±3dB
Battery:  50mAh*2   500mAh Charging case
Driver Size:  13mm
Charging port type:  Type c
Charging Time:  2 hour
The numbers of re-charge:  3.5
50% volume Playing Time(ANC on) :   9.5 hours
50% volume Playing Time on(ANC off) :  10 hours
100% volume Playing Time(ANC on):  8.5 hours
100% volume Playing Time(ANC off):  9 hours
Digital Charge Display
Compatible with Siri and Google Assistant