Bluetooth version: 5.3
Chip: JL7023
Operation distance: 10m ( free space)
Frequency: 2.402-2.48GHz
Speaker driver: 13mm
Talk time: 4-5H
Music play time: 4H
Charge in the case: 3-4 times
Charge：1-2H
Earbuds Battery: 25mA*2
Charge box capacity: 250mA
MIC: ECM
