Comprehensive Audio Solution: Upgrade your audio experience with our versatile 20W power amplifier board, designed for seamless integration with various speaker systems. This board features advanced Bluetooth connectivity for wireless audio streaming. Multi-Functional Design: Equipped with a radio decoder and recording capabilities, this motherboard allows you to enjoy and record your favorite radio stations directly from your speakers. Ideal for creating a audio library. High Compatibility: The A22R-7.4V model is engineered to be compatible with a wide range of speaker systems, making it a perfect choice for audio enthusiasts looking to enhance their sound system's performance and features. Color: Black Material: plastic Package Contents: 1 x Decoder board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.