Model:X4
Material:ABS+silicone
Dia Frequency Response:40Hz-20KHz 
SNR(Signal to Noise Ratio): 92db±3db 
Distortion: <1.6% 
Speaker Size: 10（Φmm） 
Bluetooth Version:Bluetooth 5.3
Profile:HFP/HSP/A2DP/AVRCP 
Connect Distance:12-15m 
Wear Manner:in ear 
Charging Battery Capacity:120mAh 
Music Time:3-4 hours 
Charging Time:1 hours 
Charging Port: Type C