shamballa jewelry wholesale Putting a sound in the office, it is best to be Bluetooth, what are the recommendations?

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  1. Flora

    snap jewelry wholesale china If it is mainly used to call, the small Bluetooth speaker used in the conference conference,
    It is recommended to see the P620-M of P620-M, the actual use distance is about 4-5 meters.
    References The following schematic diagram:

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