China Factory Price 500mah waterproof Portable Black
2021-9-26u2002·u2002Factory Price 500mah waterproof Portable Black TWS Earphone Call noise reduction Bluetooth specification: Bluetooth V5.0 PAU1623 (dual-mark call noise reduction) Support protocol: A2DP, AVRCP, HSP, HFP Voice prompt: default English software; Waterproof level: IPX5 level Speaker: 6mm Microphone sensitivity: -42±3db Frequency response: 20~20000Hz
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