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The general 102 BC module encapsulation, users can directly replace use, without changing the circuit design High sensitivity, low noise, strong anti-jamming capability, few external components, small size (11 * 11.2 MM Max), extremely easy to use Built-in "adjustment, low power consumption, super wide voltage range (2.7 3.6 VDC) Built-in noise elimination, soft mute, bass boost circuit design Application of simple, low cost, high cost performance