Micro SD card, 3.5mm audio input, and wireless connectivity are supported. To add color and create an outdoor atmosphere, combine music, two RGB modes, and five-color LED lights. Easy to carry, cylinder-shaped, solid-colored, and lanyard-equipped. Louder volume, 20W output power, and a double drive unit. Enjoy water activities worry-free thanks to the IPX6 waterproof design. To produce a more powerful stereo effect, support two Intune Plus True Wireless Pairing (TWS). You can charge USB-C. Details: Power input: DC 5V=1A 20W speaker output 4000mAh is the battery's capacity. Four hours are needed for charging. 15 hours of operation Unit of drive: Ø60mm Dimensions and weight: Ø90 x 210 mm, 663 g