noise isolation

Brand:  LDNIO
Color:  Black
Bluetooth Version: 5.3
Frequency Range: 2.402 GHz – 2483.5 MHz
Transmission Distance: ≥ 10 meters
Speaker Size: 13 mm, 32 ohms
Earbuds Battery Capacity:  30 mAh
Charging Time: Approximately 1 hour
Music Playback Time: About 4 hours
Talk Time: About 3.5 hours
Charging Case Battery Capacity: 300 mAh