Product Description: Bluetooth Digital Power Amplifier Module 2.1 Channel Transform your audio experience with our Bluetooth Digital Power Amplifier Module, designed to deliver powerful and immersive sound. This 2.1 channel subwoofer sound power amplifier board is perfect for audio enthusiasts seeking high-quality performance and user-friendly features. Bluetooth 5.0 Connectivity Enjoy seamless wireless audio streaming with the latest Bluetooth 5.0 technology, offering a transmission range of up to 49 feet (unobstructed). The module also includes a 3.5mm AUX input jack, providing versatile connectivity options for various audio sources. Enhanced Sound Quality Customize your listening experience with adjustable high and low-frequency knobs. The ZK MT21 Bluetooth power amplifier board allows you to create more layered soundscapes and deliver deeper, more impactful bass, enhancing the overall audio quality. User-Friendly Design This sound power amplifier board is designed for ease of use. It is compatible with most DC adapters on the market (plug size 5.5x2.1mm), ensuring a hassle-free setup process. Whether you're a beginner or an experienced user, you'll appreciate the straightforward installation and operation. Comprehensive Protection Mechanisms Safety is a priority with our amplifier board, which includes multiple protection mechanisms such as short circuit protection, overcurrent protection, overheat protection, and anti-reverse protection. These features ensure safe and reliable operation, protecting both the device and your audio equipment. Intelligent Overload Protection In the event of an overload, the Bluetooth digital power amplifier module is designed to report the fault condition to the processor, preventing damage and preserving the integrity of the system. This thoughtful design feature ensures long-lasting performance and peace of mind. Upgrade your audio setup with this powerful and versatile Bluetooth digital power amplifier module, perfect for creating an immersive sound experience in any environment. Enjoy the perfect blend of advanced technology, superior sound quality, and user-friendly design.