The Fosi Audio BT30 Pro is a 2.1 channel Hi-Fi power amplifier with a sleek black design and a power output of 350W. It features multiple audio inputs including digital coaxial RCA, stereo L/R RCA, pre-out, and multi-channel RCA. The amplifier class is D and it has three types of audio outputs: RCA, raw cable speaker jacks, and banana speaker jacks. The model also includes Bluetooth connectivity and digital features.