Features: 150W+150W Blue-tooth 5.0 wireless connection, Blue-tooth+AUX audio input, 2.0 channel stereo output. The audio power subwoofer amplifier module with powerful chip, AM interference suppression function, shielding power inductance, low noise front stage operational amplifier, let you enjoy a more perfect sound quality experience. BT Amp module is designed with over-voltage for protection, under-voltage for protection, over-heat for protection, short-circuit for protection, with for case to protective it. Mini size and higher playability, easy to assemble and install. Its wide working voltage for DC 12-32V make it easy to used at home or in the car. Specifications: Material: ABS+Alloy Size: 91x58x25x19mm/3.58x2.28x0.98x0.74in Chip: TDA7498E Blue-tooth+AUX audio input Work Voltage: for DC 12V-32V Channel: 2 for CH Stereo Output Blue-tooth version: Blue-tooth 5.0 Blue-tooth transmission distance: 50 Ft Terminating Impedance: 4 - 8 Ohm Match Speaker: 30 - 200watt Package Includes: 1x Amplifier Board note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.