DFRobot High Power Bluetooth Power Amplifier Board is a cost-effective high power Bluetooth amplifier board that features 100W output power. It has a volume control button, Bluetooth 5.0 input, and dual-track output. The board can be operated at DC 5~24V and is compatible with 4-8Ω 50W-300W passive speakers. Connect it to a Raspberry Pi, mobile phones, and other main-controllers with Bluetooth.