model: T20
Bluetooth version: 5.4
Speaker size: 13mm, copper ring composite film
Battery earphones: 40mA
Charging case: standard 400mAh
Charging time: 1 hour for earphones, 1.5 hours for charging case
Play time: 5H in noise reduction mode; 6H in normal mode with 80% volume
Noise reduction depth: single feed depth of 25 ± 3db
Transmission distance: 10 meters