3.7V-5V TF Card MP3 Decoder Board

Features: Support MP3 play format Can play T / SD card, U disk, FM, and external audio source (LineIn), insert the card before play, can also be switched by the Mode button Automatically detect whether the headset is inserted, the IO port (Mute) can directly switch external amplifier, no need plug-in transistor Use one AD-key port to achieve a variety of key combinations There are two sets of AD-key keyboards for you to choose Support 3 FM radio chip: RDA5807, BK1080 and RTC6207E Supports USB audio mode Does not support infrared remote control, USB device mode