Audio decoding unit

A120 MT8870 Voice decoding via phone, voice and phone decoding and speech and sound module with five LED indicators, easy to know the output status. The unit contains an audio input interface board. MT8870 DTMF voice decoding module, phone sound module for Arduino. Main chip: MT8870 with audio input interface. 5 LED lights to indicate the output status easily. Operating voltage: 5 volts DC. Maximum current: 10 milliamps. Maximum power consumption: 500 milliwatts.