Features: - Support reading MP3 songs in TF card/U disk. - Independently adjust treble, bass and master volume. - Built-in Bluetooth receiver and FM radio function. - With AUX input port, it can be connected to PC/Phone/CD. - Dual microphone input, adjustable reverb. - Support voltage AC 220V or DC 12V/ 24V. Specification: Support voltage: 220V/12V/24V bluetooth: 5.0 bluetooth music: support bluetooth call: not supported Microphone: support TF/Storage card: support Subwoofer adjustment: support FM radio: support Channel: Mono USB: support Remote control: support Colour: Black Packing included: 1 *bluetooth power amplifier board 1 * remote control 1 * speaker wire 1 * power cord 1 * DC 12V/24V line Note: 1. Due to manual measurements and slight color variations, please allow 1-3 cm (0.4-1.18 inches) difference to suit different display settings. 2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.