Mikroe MP3 2 Click is an audio decoder expansion board with an onboard microSD card slot to create personal audio playback systems. The click features the Shenzhen Qianle Microelectronics Technology KT403A SOC chip solution with an intergraded MCU. It also has an intergated hardware audio MP3/WAV decoder, and DSP. The integrated hardware components enable the MP3 2 Click board to guarantee good stability and tone quality. Use UART serial communication to control this board and do diverse operations with music files from a microSD card. Controls include Play, Pause, Volume Up/Down, and many more. These features make the MP3 2 Click ideal for audio devices, in applications that demand an Audio Playback Module for MP3, and WAV.