2.1 Subwoofer Amplifier Board, WiFi & Bluetooth 5.0, 50W x 2 + 100W Class D Ster
High-Performance Subwoofer: Enjoy powerful sound with a 50 W X2 stereo pair and a 100 W subwoofer amplifier card. Stable Streaming & High Sound Quality: Supports lossless music file playback formats including MP3, APE, FLAC, and WAV.