On board complex frequency decoder chip MT8870 On board voice input interface On board five LED indicators for easy viewing output state 1, on-board decoding chip MT8870 complex frequency 2, on-board voice input interface 3, onboard five LED indicators for easy viewing output state 4, the main chip pins basically have been drawn 5, PCB size: 26.5 (mm) x24.5 (mm)
541100cookie-checkTéléphone de module de décodeur vocal MT8870 DTMF
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