General description The Stereo Bluetooth Power Amplifier Board is designed for high-quality audio output with a compact size. It features a remote control and is suitable for various power supply voltages, making it versatile for different applications. Technical specifications Output mode: stereo Output power (@1KHz): 20W*2@12V 4Ω, 30W*2@16V 4Ω, 30W*2@21V 8Ω, 40W*2@24V 8Ω Speaker compatibility: 4Ω (5~16V supply), 8Ω (5~24V supply) Protection features: Power reverse protection, Short circuit protection, Thermal protection Supply voltage: DC 5~24V Bluetooth version: 5.0 Connect distance: 15 meters (visible) Size: 55*38*14mm Material: PCB Color: black Package Contents 1 * Bluetooth power amplifier module 2 * Acrylic shell 4 * Copper pillar 8 * Screw