As its name suggests, that familiar form factor has been shrunk to a diameter of around 4 inches (105mm), and a thickness of 1.9 inches (48mm) — making it easier to fit into pockets or smaller bags. The Miniroll weighs 9.8 ounces (279g) and still features a built-in strap that can be used to attach it to things like bags and belt loops. Ultimate Ears also says that the speaker is “drop-proof” up to heights of around 47 inches (1.2 meters) and carries an IP67 rating against dust and…