Mini Audio Amplifier
Compact 5V dual-channel Class D amp board for clear, powerful stereo sound
DROK — Precision Power & Control Solutions
DROK provides high-quality power converters, testers, amplifiers, and control modules for DIYers, professionals, and engineers.
DROK — Innovating Power Conversion & Monitoring
DROK specializes in smart, compact, and efficient modules for power conversion, monitoring, and control applications.
Battery Capacity Monitor
Dual digital meters display battery voltage, power, and temperature for accurate monitoring
USB Volume Knob
Easily control audio volume with one-key mute, programmable for PC, Mac, Android
DROK — Power Your DIY and Professional Needs
Boosts 5–11V to stable 12V power, waterproof design for solar systems
Monitors voltage, current, and power with LED display and 7 test modes
Accurately controls temperature with LCD display and waterproof sensor probe.
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