KOOBOOK 5Pcs MT8870 DTMF Voice Decoder Decoding Module Telephone Audio Decoder Speech Module for Arduino

Applications: Paging systems Repeater systems/mobile radio Credit card systems Remote control Personal computers Telephone answering machine Note: Part of the PCB design, pin-pin VCC and GND of the silk screen to engage in anti-use, please check before use, thank you! We highly appreciate all customers opinions to improve the selling, also if anything you unsatisfied, please contact us for probable best solution. Package Includes: 5Pcs