Whether your party is inside or outside near the pool, the portable Dolphin Audio KP-80 is the loud yet small portable Bluetooth boom box to use. It’s ideal for kids and adults, karaoke fun, parties, and more! Tweak playback using its indoor/outdoor EQ setting. Add excitement with its multicolor woofer lights and microphone. Dance to music streaming through Bluetooth connectivity or through its USB and SD Card ports, aux input, or built-in FM radio. You can even power up a smart device with its 1-amp USB charging port. Buy a second like speaker sold separately and you can pair them together via WaveSync Technology!