Specifications:

Model:C21

Material:ABS+PP

Chipset:Jeli 6983D4

Dia Frequency Response:40Hz-20KHz

SNR(Signal to Noise Ratio): 92db±3db

Distortion: <1.6%

Speaker Size: 13（Φmm）

Bluetooth Version:Bluetooth 5.0

Profile:HFP/HSP/A2DP/AVRCP

Connect Distance:12-15m

Wear Manner:in ear

Charging Battery Capacity:300mAh

Earbuds Battery Capacity:30mAh

Music Time:3-4 hours

Charging Time:1 hours

Charging Port: Type C