Altec Lansing IMW577 LifeJacket 2 Floating Portable Waterproof Bluetooth Speaker, Black/Red Unique elliptical-shaped form factor that raises the style bar, and at just one pound and 7.5" x 3.125" x 2.825", the speaker is not much bigger than a wallet Packed with added features including a 16-hour battery life, speakerphone with spoken caller ID and battery level, voice confirmation pairing and it accepts voice commands, NFC compatible and a power supply for smartphones or other devices Be impressed with amazing sound quality- dual 2.0" neodymium drivers, a passive radiator design, Altec Lansing DSP audio enhancement technology, aptX CD-quality wireless audio and a bigger power amp, it pumps out huge volume along with crisp, clear sound Boasting a heavy-duty, washable rubberized skin that is everything proof- IP67 rated -waterproof, dustproof and shockproof; and it floats so the music will play on- no matter what Mountable with mounting bracket included