Item Type: Digital Audio Amplifier Material: ABS, brass, aluminum alloy Output Power: 50W + 50W Power Requirements: DC9V-24V Bluetooth Distance: At least 12 meters / 39.4ft(approx.)(barrier-free) Bluetooth Protocol: Bluetooth 5.0 Speaker Impedance: 4-16 1Using the chip TPA3116, the maximum power can reach 50W, 5A at 12V, and the actual output power can reach 30W 2With high fidelity and powerful sound, clear and no audible noise 3Optimized circuit can ensure that no noise is generated even at maximum power output 4The mahogany color shell is fashionable and stylish, more beautiful and atmospheric, suitable for gifts 5High quality material can make sure the durability and stability of the product 1 x Player 1 x User Manual