Features: 160W+160W+220W Bluetooth-compatible connection, blue-tooth+AUX+USB audio input, 2.1 channel stereo output. This digital Amp board with independent treble and bass adjustment buttons,you can directly adjust the treble and bass through the module, without using the player or speaker. Adopting TDA7498E(with AM interference suppression function) chip, with excellent sound quality. This Bluetooth-compatible Amp module is designed with over-voltage protection, under-voltage protection, over-heat protection, short-circuit protection, with case to protective it. Input voltage range: DC15-36V,output power: 160W, subwoofer 220W Let you enjoy a more perfect sound quality experience. Package Includes: 1x Audio Amplifier Board Specifications: Material: ABS Size: 145x126x28mm/5.7x4.96x1.1in Blueteeth standard: 5.0( 10m without cover) Input mode: AUX+Blueteeth+USB Channel: 2.1(left& right) Chip: TDA7498E Power Supply: DC15-36V Trumpet: 30-200W, 4-8 Output power: 160W Subwoofer 220W 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.