Features:
B Luetooth: Bluetooth V5.0
Operating voltage: DC 2.2V-5.5V
Effective distance: 10M without barrier
Nominal Impedance: 32
Battery capacity: 45mA
Charging case: 280mah
Charging input : 5V 500mA
Charging time: about 1 h
U Se: Call 3 h; 2.5 h music playback;
Standby time: 80 hours
Headphone weight: 3.5g approximately
It is not authentic xiaomi airdots, but it is suitable for xiaomi iphone huangwei andriod

If you are unsatisfied with your item for any reason, return it within 30 days of delivery.