Colorful Lights Bluetooth Speaker High Volume Audio Subwoofer $ 20.01 Product information: Function: Charging, inserting card, receiving payment broadcast Applicable scene: outdoor Speaker unit: dual speakers Certificate type: CE certification Type: Bluetooth speaker Connection method: Bluetooth connection, card Play format: MP3 Shell material: plastic Box material: plastic Power supply mode: AC Built-in battery capacity: 1200 mA-2000 mA Packing list: Speaker *1