Ultimate Ears Boom 3 - Ultraviolet Purple The Ultimate Ears Boom 3 - Ultraviolet Purple ($150) delivers 360-degree sound with a deep bass. It's portable, allowing up to 15 hours of playtime. It's completely waterproof and it floats! It comes in red, black, and blue! Image Source: amazon.com Ultimate Ears Boom 3 - Ultraviolet Purple $150 from amazon.com Buy Now