["brand new and high quality\r\nThe module is a kind of simple MP3 player device which is based on a high-quality MP3 audio chip. It can support 8k Hz ~ 48k Hz sampling frequency MP3 and WAV file formats. \r\nThere is a TF card socket on board, so you can plug the card that stores audio files. MCU can control the MP3 playback state by sending commands to the module via \r\nUART port, such as switch songs, change the volume and for play mode and so on. You can also debug the module via USB to UART module. It is for Arduino/AVR/ARM/PIC.\r\n\r\nFeatures:\r\nSupport sampling frequency (kHz): 8/11.025/12/16/22.05/24/32/44.1/48\r\nSupport file format: MP3 / WAV\r\nSupport \r\nOnboard 3-watt mono amplifier\r\nOn-board speaker interface XH2.54-2P, can connect to external speakers such as 8 ohm 3-watt, 8 ohm 2 watt, 8 ohm 1 watt\r\n30 class adjustable volume\r\nUART TTL serial control playback mode, baud rate is 9600bps\r\nSerial communication format: 8N1\r\nWorking voltage: 3.7~5.25V DC\r\nOn-board headphone jack, it can connect headphones or external amplifier.\r\nOn-board TF card connector\r\nDimensions: 2.3x4.3cm \r\n8ohm 1W Speaker:\r\nCan be directly plugged onto the Serial MP3 Player module to use.\r\nMagnetic forms: inner magnetic\r\nRated impedance: 8 ohm\r\nRated Power: 1 W\r\nDimension: diameter 4.9cm/1.93inch\r\nGreat for speaker and amplifier projects DIY.\r\n\r\nPackage includes:\r\n1 x UART Serial MP3 Music Player Module With Speaker"]