Bluetooth V5.3
10 meters Bluetooth Range
Up to 5 Hours Play Time
Hifi Sound
Transperent and attractive design
Wireless Frequency:2.02-2.04Ghz
Charging box capacity:300 mAh
Charging time: about 2 hours
Talk Time: about 4 hours
Storage Time: about 5 months
Earphone built-in battery: lithium battery