Enhance your audio experience with this advanced 2.1 Channel Bluetooth Power Amplifier Board, designed to deliver high-fidelity sound with versatile connectivity options. Equipped with Bluetooth 5.1 technology, AUX, USB sound card, and U disk input, this amplifier board provides seamless wireless and wired audio inputs for superior sound quality and a rich listening experience. Perfect for users seeking clear, immersive sound with powerful bass performance. Key Features: · Bluetooth 5.1 Technology: Offers stable, high-quality wireless audio streaming supporting Android and iOS devices with intuitive app control for volume, playback, and connection settings. · Multiple Audio Inputs: Compatible with Bluetooth, AUX, USB, and USB sound card inputs, providing extensive flexibility for different audio sources. · Superior 2.1 Channel Output: Delivers 15W power to left and right channels and 30W to the bass channel, delivering crisp highs and deep bass for an immersive soundstage. · Independent Bass Adjustment: Features 360-degree tunable bass control for precise sound customization, restoring detailed audio as if listening to live music. · High-End Volume Control: Smooth, high-quality encoder knob for easy and precise volume adjustment. · Robust Protection Mechanism: Built-in safeguards against overheating, overcurrent, short circuit, and static electricity ensure long-lasting reliability and safe operation. · Wide Speaker Compatibility: Supports speakers rated 10W to 50W with impedance from 4Ω to 8Ω, ensuring broad adaptability to various audio setups. · User-Friendly App Support: Compatible with YS Audio APP, allowing visual operation including volume control, track navigation, playback options, Bluetooth name modification, and password settings for an enhanced user experience. Specifications: · Product Type: Power Amplifier Board · Material: PCB · Bluetooth Version: 5.1 · Weight: 105g / 3.70oz · Audio Channel: 2.1 Channel · Input Methods: Bluetooth, AUX, USB, USB Sound Card · Power Supply: DC 9-24V, 3A or more · Audio Output: Left Channel 15W, Right Channel 15W, Bass Channel 30W · Speaker Compatibility: 10W-50W, 4Ω-8Ω · Volume Adjustment: High-end encoder knob · Protection: Overheat, overcurrent, short circuit, anti-static protection · APP Support: YS Audio APP control (Android & iOS) Package Includes: · 1 x 2.1 Channel Bluetooth Power Amplifier Board This versatile and reliable amplifier board combines advanced Bluetooth connectivity with rich interface options and protective features, making it an ideal choice for enhancing your home audio systems, DIY speaker projects, or multimedia setups with clear, powerful sound and user-friendly control.