Sinilink-APP control for easy and convenient operation of the amplifier board. Multiple protection features including static electricity, overheating, overcurrent, and short circuit for enhanced safety. Stereo Bluetooth-compatible digital amplifier board for HD-compatible sound quality with rich bass and transparent treble. High-end encoder knob adjustment for smooth and precise control of audio settings. Visual operation playback mode through the APP for a user-friendly experience. Description: Introducing our high-end stereo Bluetooth-compatible digital amplifier board, designed to elevate your audio experience to new heights. With a focus on precision and quality, this amplifier features a high-end encoder knob for smooth adjustments, ensuring a seamless user experience. The Sinilink-APP control allows for convenient and intuitive operation, while the static electricity, overheating, overcurrent, and short circuit protections provide peace of mind. Enjoy HD-compatible sound quality with rich bass and transparent treble, delivering an immersive listening experience. The APP visual operation playback mode adds a modern touch to your audio setup. Elevate your audio experience with our premium amplifier board. Item Name: Module Material: PCB Board Power Supply: DC5-24V/10A And Above Bluetooth-compatible Version: 5.0 Audio Input: Bluetooth-compatible AUX U Disk USB Sound Card Audio Output: Passive Speaker 3.5mm Interface Stereo Output Volume Adjustment: High-end Encoder Knob Adjustment, Smooth Feel Frequency Range: 20Hz-30KHz Signal-to-noise Ratio: 92dB Compatible Speakers: 20W-200W/4Ω-8Ω Output Power: 100W*2 Protection Mechanism: Electrostatic Protection, Overheating Protection, Overcurrent Protection, Short Circuit Protection Unique Feature: Supports Sinilink APP Control Size Details: L: 9.3cm/3.66", W: 6.5cm/2.56", H: 2.5cm/0.98" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Module