Advanced Audio Technology: Equipped with the TPA3223 chip, this Bluetooth digital sound amplifier board delivers a powerful 2.1 channel output, ensuring high-quality audio reproduction with 200W*2+400W power for stereo channels and subwoofer respectively. Bluetooth Connectivity: Easily connect your Bluetooth devices for a seamless audio experience without the hassle of wires. Ideal for creating custom, wireless sound systems or in commercial spaces. DIY Friendly: Perfect for audio enthusiasts and DIYers looking to build or upgrade their own speaker systems. This board's user-friendly design ensures easy installation and customization. and Reliable: Built to last, this amplifier board is designed with robust materials that withstand continuous use, ensuring long-term reliability and performance. Type:TPA3223 Bluetooth Digital Sound Amplifier Board Color:As Shown Material:Plastic+Metal Package Contents: 1 * Bluetooth amplifier 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.