Specification: Origin: Mainland China Type: Module Condition: New Voltage: 2.5-5.5V Size: 22*18*3mm/0.86*0.7*0.12in Product Application: LCD TV sets, monitors, laptop computers, portable speakers, portable DVD players, game consoles, cell phones/speakerphones. Note: The power supply voltage should not exceed 5.5 V. Don't connect the positive and negative of the power supply to the opposite. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1*Super Mini Digital Amplifier Board 1.Noise-Free Performance: Experience exceptional noise suppression with our super mini digital amplifier board, ensuring a crystal-clear audio experience even when no input audio is connected. Enjoy the silence while enjoying your favorite tunes. 2.Immersive Stereo Output: With dual-channel stereo capabilities, our audio power amplifier module delivers 3W+3W of power with just a 5V power supply. It effortlessly drives up to four 8-ohm speakers, providing energetic and high-quality sound reproduction. 3.Innovative LC Filter-Free Design: Our digital sound amplifier module eliminates the need for an LC filter, allowing direct USB power from your computer. Simplify your setup and enjoy hassle-free audio amplification. 4.Thoughtful Wiring Layout: Featuring a double-sided PCB design, our mini power amplifier board module ensures proper grounding and minimizes interference between the potential balance and channel wiring. Enjoy cleaner and more reliable audio signals. 5.Ultra-Compact Design: Our stereo audio amplifier module's miniature size enables easy integration into various digital devices, offering a high level of efficiency without compromising on performance. Maximize space utilization and enjoy powerful sound amplification in any compact setup.