The Grove - MP3 Module V4.0 is a compact, high-quality audio playback module designed to replace the discontinued MP3 V3 version. Built around the WT2605CX chip, it supports multiple audio formats including MP3, WAV, and WMA, and works with various storage options like SPI-Flash, TF card, and USB flash drives. It is ideal for navigation systems, audiobooks, online music players, and interactive voice response (IVR) applications. Key Features Multiple Music Format Support: Decodes and plays MP3, WAV, WMA files at 8kbps–320kbps bit rates. Versatile Storage Options: Supports SPI-Flash, TF cards, USB drives, and FAT/FAT32 file systems. Flexible Control: Rich AT command set for various operation modes. Advanced Playback Functions: Randomized playback, seamless loop playback, and more. DAC Audio Output: High-quality sample output via DAC by default. Why We Created It In response to community feedback after the discontinuation of MP3 V3, we developed MP3 Module V4.0 using a superior audio chip to ensure better performance, broader format compatibility, and richer features for your audio playback needs. Applications GPS Navigation Systems Voice Prompts Online Music Players Language Pronunciation Devices Interactive Voice Response (IVR) Systems Audiobook and Podcast Playback Systems Specifications Parameter Detail Input Voltage 5V DC Operating Current (Idle)