Advanced protection features: Short circuit, overcurrent, overheating, and antireverse connection protection guard the amplifier and connected equipment, helping prevent damage and ensure reliable performance in varied conditions. Versatile connectivity: Bluetooth 5.0 enables wireless audio up to 49 feet, and a 3.5 mm AUX input provides wired sources. Seamlessly switch between inputs to match your audio setup. Enhanced sound control and power: This 2.1 channel amplifier includes treble and adjustment knobs for tone shaping. Maximum output is 2 x 50 W plus 100 W, allowing you to finetune frequencies to achieve , layered sound and impactful bass. Compatibility and applications: Designed to work with Bluetooth and AUX sources, suitable for home audio systems, DIY speaker projects, and multimedia installations. Use scenarios: 1) In a living room, stream music from a phone to a powered speaker system via Bluetooth. 2) In a PC or TV setup, use the AUX input for improved sound quality. 3) In a DIY speaker project or custom audio install that requires a 2.1 channel amplifier.