Blue tooth loudspeaker
A technology of bluetooth speakers and bluetooth modules, which is applied in the structure of telephones, near-field transmission systems using transceivers, voice amplifier applications, etc., can solve problems such as the inability of multiple people to talk at the same time, and achieve a good effect of echo suppression
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[0014] See Fig. 1, bluetooth speaker of the present invention comprises casing, panel button 2 and circuit device 3, and above-mentioned circuit device has bluetooth module 31, bluetooth antenna 32, hands-free chip 33, audio amplifier circuit 34, USB interface 35, loudspeaker 36, microphone 37 and power supply system 5, power supply system 5 has charging management circuit 52, power supply management circuit 51 and lithium battery 53; , the loudspeaker 36 is connected with the audio amplifier circuit 34, the bluetooth antenna 32 is connected with the bluetooth module 31; the charging management circuit 52, the power supply management circuit 51 and the lithium battery 53 of the above-mentioned power supply system 5 are interconnected in sequence, and the power supply management circuit 51 is respectively connected with the hands-free Chip 33 is connected with bluetooth module 31, and the USB interface 35 of circuit device 3 is connected with hands-free chip 33, charge management c
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