Specification:
Chip：BES2300Z，ANC+ENC
Bluetooth Version: V5.0
Charging case dimension: 68*48*28mm
Earbud dimensions: 23*21*29mm*2
Net weight: 3.7g*2(Earbuds)/36g(Charging case)
Wireless working range: 10M (without obstacles)
Speaker: Φ10mm*2
Speaker frequency: 20Hz~20KHz
Input voltage / current: DC 5V/1A
Earbud Battery: 40mAh*2(Fully charged in 1.5H)
Charging case battery: 400mAh
Play time: 6H（BT),5H(BT+ANC)
Talk time: 4H
Charging time: about 2H(Charging case)
Noise reduction ：above -22dB

Feature:

1.Active Noise Cancellation 
2.IPX5 waterproof  
3.Support Ambient sound 
4.Environmental Noise Cancellation 
5.Master slave free conversion 
6.Smart touch control 
7.hands-free calling 
8.Voice assistant