A dual-channel digital power amplifier board with built-in Bluetooth 5.0 connectivity. Each channel delivers up to 50W of output power, making it a versatile choice for DIY speaker builds, Raspberry Pi audio projects, and custom sound systems. The board also supports playback from TF cards and USB drives.

Onboard function buttons let you switch playback modes, control volume, skip tracks, and adjust EQ settings without needing a separate controller. A USB-C connection is included for playing audio directly from a laptop.

Key Features

• 50W × 2 Output – Dual-channel stereo amplification
• Bluetooth 5.0 – Wireless audio streaming up to 15 m range
• Multiple Input Modes – Bluetooth, TF card, USB drive, and USB-C audio
• Onboard Controls – Mode, play/pause, next/previous, volume, and EQ buttons
• Wide Voltage Input – 12–24V DC (higher voltage = greater output power)

Button Controls

• MODE – Switch between Bluetooth, TF card, and USB drive input
• RUN / STOP – Play and pause
• NEXT / BACK – Short press to skip tracks
• VOL+ / VOL- – Long press to adjust volume
• EQ – Cycle through sound effect presets

Specifications

• Power Supply – 12–24V DC
• Output Power – 50W × 2 (stereo)
• Bluetooth Version – 5.0
• Bluetooth Range – Up to 15 m (line of sight)
• Bluetooth Name – VHM-302 (pairing password: 1234)
• Audio Input – Bluetooth, TF card, USB drive, USB-C

Ideal For

• DIY Bluetooth speaker builds
• Raspberry Pi audio projects
• Custom sound systems and amplifier upgrades

Package Contents

• 1× Digital Bluetooth Power Amplifier board (50W × 2)
• 1× Manual