Depth of Noise reduction: 30-32db
Bluetooth: Jieli6973D4 V5.3
Quad Mic: ANC + ENC
Frequency: 20Hz-20KHZ
Distance: 10M
Support Profile: SBC/MP3/AAC
Battery of Earphones: 40mAh
Battery of Box: 500mAh
Speaker: Ø13mm 32 Ω
Music Time: 6H
Charge Time of Box: 1.5H
Charge Time of Earphones: 0.5H
Charge Port: Type-C
Include: 1 Charge Cable, 3 Pairs Earcap (L M S)