Description: This kind of bluetooth audio power amplifier module is a good replacement for the damaged bluetooth module, which can provide you with good performance. This 2.1 channel power amplifier is easy to change, you can install and use it conveniently. This kind of 2.1 channel audio amplifier provides you with stable and quick connection, which works with wide compatibility. This power amplifier module supports 2 input modes, including bluetooth and Aux, you can order according to your need. This kind of audio amplifier is enough to meet your different needs, you can adjust the frequency, volume, high pitch, low pitch, etc. Specification: Material: electronic components. Color: black. Size: 93x90x22mm. Bluetooth version: 5.0. Audio input: AUX, bluetooth. Channel: 2.1. Power: DC12-24V / 5A. Adapter speaker: 20-100W, 4-8. Output power: max 50W(right and left sound track), max 100W(subwoofer). Note: Due to the light and screen difference, the item's color may be slightly different from the pictures. Please allow a slight deviation for the measurement data and make sure you do not mind before ordering. Package included: 1x power amplifier module.(the case needs to assemble)