Model: XT92
BlueTooth 5.1,Built-in Mic on both
Transmitting Distance: up to 10m
Charging Case Battery:3.7V 300mAh
Earbuds Battery: 3.7V 30mAh
Charging Case Battery Capacity: 3.7V 300mAh
Earbuds Battery Capacity (Each): 3.7V 30mAh
Music Play Time: about 4 hours (depends on music volume)
Charging Time: about 1 hour (Earbuds), about 2 hours (Charging Box)
Transmitting Distance: up to 10m (no obstacle)
Mic Sensitivity: 42dB