Robodo Mt8870 Dtmf Voice Tone Decoder Module Telephone Audio Speech Decoding Module Electronic Components Electronic Hobby Kit

Description: onboard complex frequency decoder chip mt8870 voice input interface board onboard five led indicators for easy viewing output state the chip have been drawn mainly basic pin pcb size: 26. 5 (Mm) x24. 5 (Mm). note: pcb design, vcc pin and gnd pin are in the opposite position, please be caution. The vcc pin should be the gnd pin, and the gnd pin should be the vcc pin material: plastic color: blue and black. Package includes: 1x voice decoder module.