This compact voice prompt module integrates an intelligent MP3 playback chip with a 1 W speaker in a tiny 30 × 11 mm package. It supports MP3, WAV, and WMA hardware decoding with 16 MB of on-board storage that retains files even when power is lost.

Control playback via the built-in button (short press for next track, double press for previous, long press for pause/play) or send serial commands over TTL for automated voice prompt systems. Simple enough for standalone use with a battery and buttons, yet flexible enough to integrate into larger systems.

Key Features

• Hardware MP3/WAV/WMA Decoding – High-quality DAC output for clear audio playback
• 16 MB On-Board Storage – Non-volatile memory retains MP3 files without power
• 1 W Speaker (4 Ω) – Built-in speaker delivers clear audio from the module itself
• Dual Control Modes – TTL serial commands or 1-channel button control via P1 interface
• Ultra-Compact – Just 30 × 11 mm for easy installation in space-constrained projects
• Wide Operating Temperature – -20°C to +70°C for diverse environments

Specifications

• Supply Voltage – DC 5 V
• Output Power – 1 W
• Speaker Impedance – 4 Ω
• File Formats – MP3, WAV, WMA
• Storage – 16 MB internal
• Interface – TTL serial / 1-channel switch
• Operating Temperature – -20°C to +70°C
• Dimensions – 30 × 11 mm

Button Controls (P1 Interface)

• Short Press – Next track
• Double Press – Previous track
• Long Press – Pause / Play

Ideal For

• Voice prompt and announcement systems
• Interactive exhibits and kiosk audio
• Alarm and alert notifications
• Navigation audio and safety announcements
• IoT and embedded audio playback projects

Package Contents

• 1× MP3 Voice Prompt Module
• 1× USB to 4-pin DuPont Cable