SoCs: Qualcomm QCC3040
Connectors: Type C
Bluetooth 5.2
Microphone: 2pcs/pc, 4pcs /pair
Speaker : φ8mm dynamic x 1
Battery(earbuds): 40mAH
Battery(charging case): 420mAH
Charging time:  ≤ 2 hours
Working range: 6m+
Frequency response range: 20Hz-10KHz
Case size: 53*53*28.5mm
BT Profile: HSP,HFP, A2DP,AVRCP
BT Codecs:SBC/AAC/aptX/aptX adaptive
Accessories: Manual, 3 pairs silicone eartips(S,M,L), Type C cable
Product Details
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H21B True Wireless Bluetooth Earbuds
Sample Pictures

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