Bluetooth Speaker LED Large Display Multi-function Computer Audio Four-unit Sound Stereo Surround Sound Effect Subwoofer Antimagnetic Noise Reduction Feature: Product type:Bluetooth speaker Material: ABS Product colour:Black Packing size:39x8.8x8.8cm/15.3x3.4x3.4in Gross weight: 550g/1.21lb Output power :10W2 Effective distance:10m Frequency response range:150Hz-20KHz Power input:5V Extended storage:32G (not included) rating: IPX5 Battery capacity: 1800mAh Bluetooth version: 5.0 F1800mAh batteryThe built-in large capacity battery has strong battery life, It can be used unplugged ,which can play music for up to 12 hours. Alarm clock functionIt is both a speaker and an alarm clock. The dual alarm clocks can be set independently to meet your different needs. Humanized design allows you to control every time as you like. Full frequency omnidirectional stereo horn2 forward speakers, 2 backward diaphragm, audiovisual shock, high and loudly bass full, 8D stereo field, presenting higher quality sound quality. Compatibles within most devices in the marketWidely compatible does not pick devices, support wired/wireless Bluetooth connection two ways, Support most mainstream karaoke software, let you enjoy. Antimagnetic design is not affected by currentTo overcome the constant current noise problem, the use of antimagnetic core piece, double magnetic circuit design, positive and negative electromagnetic offset, 360 degree all-round antimagnetic, no longer worry about the interference brought by mobile phones and computers. Tabletop art is minimalist and versatileMetal mesh, streamline design, simpler and generous, with LED mirror design decoration more grade, home, entertainment, office is a goods choices. Package Included: 1Bluetooth speaker 1Operating manual