Features:

ANC ON/ANC OFF/Transparency mode

Noise cancelling for calling (ENC technology)

Master-slave switches function

Hall-Effect magnetic sensor switch:

Auto pairing when take earbuds out from charging case

Auto disconnect by putting earbuds into charging case

Siri assistant (iOS system) / Google assistant (Android system):

Music Play/pause, VOL+/- controls from earbuds

Noise cancellation while call (ENC technology)

Support single earbud be used independently

Type -C charging port

Specification:

Bluetooth chipset：BES2300IU
Bluetooth Version: Bluetooth V5.2
Bluetooth Profile: HFP HSP A2DP AVRCP
Active noise cancellation (ANC): Feed-forward
Active noise cancellation level: 20-25 dB
Music audio decoder: SBC, AAC
Battery capacity:

50mAh for each earbud

500mAh for charging case

Fully charged earbuds: 1.5H

Charging case full recharged: 2H

Playing time (ANC is off): 5.5H

Playing time (ANC is on): 4.5H

Full recharged ear-buds by provided charging case: 3-4 Times

Excellent audio quality with ɸ10mm dynamic driver /32 ohm; sensitivity: 101+/-3dB