Hoco True Wireless Stereo Headset EW20

Bluetooth Version: V5.3
Connection Distance: Up to 10 meters
Battery Capacity:
Charging Case: 300 mAh
Earphones: 30 mAh
Continuous Use: Up to 4 hours
Standby Time: 150 hours
Frequency Range: 20 Hz – 20 kHz
Design: True Wireless In-ear
Features:
Stable sound quality with noise filtering
Supports master-slave switching
Invokes Siri
Allows listening with one or both earphones
Charging: Supports multiple charges from the case