SHIPPING LIST: DFPlayer Mini x1. Ease of Use and Flexibility: The DFPlayer Mini supports multiple control methods, including IO control, serial port, and AD key control, allowing users to choose the most suitable control method for their needs. Additionally, with 30 levels of volume adjustment and 6 levels of EQ settings, users can customize the audio output to their environmental requirements. Exceptional Sound Quality: With a 24-bit DAC output, the DFPlayer Mini boasts a dynamic range of up to 90dB and a signal-to-noise ratio of 85dB, ensuring exceptional sound quality for applications that require clear voice announcements and music playback. High Integration and Compatibility: The DFPlayer Mini is a highly integrated MP3 module that supports hardware decoding for MP3, WAV, and WMA formats, and is compatible with FAT16 and FAT32 file systems. It can be easily controlled with simple serial commands, making it a breeze to integrate into various DIY projects and commercial products. Mini Size, Massive Storage Expansion: Measuring just 20mm*20mm and weighing 20g, the module's compact size makes it perfect for integration into space-constrained products. It also supports up to 32GB TF cards and USB drives for expansion, as well as 64MB of NORFLASH, providing users with a wide range of storage options.