Material:ABS+PC
Bluetooth Version/chipset: V5.3/JL 7003D4
Transmission Distance:10m
Working Voltage:5V-500mA
Impedance:20Ω ± 15% Ohm
Speaker Power: 10Mw/maximum power: 15mW
Earbud /charging case Battery:400mAh
Charging Time:2H Calling: 9.5~10 hours (at 70% volume) Music Play:10~12 hours (at 70% volume) Standby:Earbuds: about 60 days, about 120 days standby time with the charging case
1.Wireless5.3, stable signal, anti-interference, low power consumption
2.16.2mm large composite diaphragm speaker, rich and clear sound, better sound resolution