Bluetooth Audio Amplifier Board, Zk Tb21 2.1Ch 50W X 2 +100W Subwoofer Power Amp With Treble And Bass Control, Bluetooth5.0 And Storage Drives and other brand accessories

and other brand accessories

External Battery Power Bank

Allowing You To Hand-Wash It With Warm Water And Air-Dry It For Continued Use

3 Level 5500Rpm For 12 Hours

Bluetooth Audio Amplifier Board, Zk Tb21 2.1Ch 50W X 2 +100W Subwoofer Power Amp With Treble And Bass Control, Bluetooth5.0 And Storage Drives and other brand accessoriesFeatures: 1. Bluetooth+Aux Audio Input, 2. 1 Channel Stereo Output, Just A Little Sound Distortion. 2. You Can Directly Adjust The Treble And Bass. 3. Amp Module Has Am Interference Suppression Function, Shielding Cover Power Inductor, Low Noise Front Stage Operational Amplifier, You Will Enjoy A More Perfect Sound Quality Experience. 4. Audio Amplifier Board With Over Voltage Protection, Under Voltage Protection, Over Heat Protection, Short Circuit