Voice Prompt Module with Integrated MP3 Player and Speaker

The Voice Prompt Module with Integrated MP3 Player and Speaker combines hardware decoding and an onboard speaker into an ultra-compact footprint. It is ideal for makers, students, and system integrators needing reliable audio alerts and voice cues in automotive, transit, and security projects. With simple DC 5V power requirements, it provides clear playback without complex setup.

Compact all-in-one audio design

Measuring just 30x11mm, this module integrates an intelligent audio chip with an onboard 1W, 4-ohm speaker. Its small footprint allows for direct installation in space-constrained enclosures without needing separate amplifier boards.

Multi-format decoding and DAC output

The module features dedicated hardware decoding for MP3, WAV, and WMA audio formats. High-quality DAC output ensures clear speech prompts and sound playback across varied operating conditions.

Non-volatile 16MB internal storage

An onboard 16MB flash memory preserves audio files securely even when power is disconnected. It operates reliably across an industrial temperature range from -20 degrees Celsius to +70 degrees Celsius.

Flexible serial and button control

The module supports TTL-level serial communication to trigger specific tracks and sequences, as well as standalone button operation. The P1 interface allows short-press track skipping, double-press previous track selection, and long-press play/pause toggling.

Broad alert and announcement applications

Designed for versatility, it suits navigation voice prompts, public transport announcements, security inspection stations, and fire alarm warnings. Simple wiring allows fast deployment into customer service terminals and vehicle safety systems.

Included connection accessories

Each unit comes with one MP3 voice prompt module and one USB to 4-pin DuPont cable for straightforward power and data connections.

Downloads & documentation

• Product wiki (DFRobot)