Speaker Type OUTDOOR SPEAKER Use Stage, Outdoor, Mobile Phone, COMPUTER, Party, Karaoke Player, HOME THEATRE, Portable Audio Player Power Source Battery Number of Loudspeaker Enclosure 1 Cabinet Material Plastic Audio Crossover Full-Range Woofer Size/Full-Range Size 4" Feature colorful LED light, LED Flashing light Communication AUX, usb Support Memory Card Yes Special Feature PORTABLE, Mini, Wireless