Seller notes

Qualcomm Dual Chip Excellent Chips Dual Qualcomm Bluetooth flagship chip design, with one chip for Bluetooth intercom communication and one chip for mobile phone interconnection.Each chip has a powerful DSP processor and complex and stable audio algorithms,allowing you to freely stack and switch between intercom, music, and calls during cycling. Multi person networking Freedom of entry and exit Maxto self-developed "Automatic networking by one click" protocol, allowing you to experience the seam...

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