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onboard complex frequency decoder chip MT8870
voice input interface board
onboard five LED indicators for easy viewing output state
the chip have been dn mainly basic pin
PCB size: 26.5 (mm) x24.5 (mm)
colour: blue
Material: CCL
Package Included:
1 x MT8870 DTMF Voice Decoder Module Telephone/ o Decoder Speech decoding module
e: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
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