2x30W Class D Wall Plate Amplifier with Bluetooth(R) Wireless Technology Bluetooth v5.0 with apt-X Programmable ID and password through dedicated software 3.5mm analog stereo input 4 Ohm/8 Ohm stable Supports auto source switching with priority for Bluetooth(R) enabled source Fits easily into a single gang low-voltage box Power Supply: 24V, 1.5A