This is the Bluetooth speaker that generates an LED-illuminated tornado inside a water globe. A smartphone connects to the speaker via Bluetooth and an integrated propeller inside the unit creates a swirling vortex of water that synchronizes to the music’s tempo. The circulating underwater current produces a water whirlwind while the speaker’s two full-range 4-watt dual drivers generate impressively robust audio from up to 33' away from a paired device. Buttons on the base of the speaker enable one to play and pause music, select audio tracks, and adjust the volume. The LED illumination automatically changes color every five seconds and cycles through a total of seven glowing hues. With an SD slot for playing mp3s from SD cards and an auxiliary port with an included 3.5mm cable. A 90-minute charge using the included USB cable provides up to five hours of power. 6 1/2" H x 4" diameter. (2 lbs.)