This is the Brane X, its a Durable and Portable Smart speaker with a built in battery… but what makes this speaker very special is that it has a proprietary downward firing subwoofer that allows this tiny speaker to put out a ton of bass. This little guy has more kick in its bass than either the JBL Boombox 3 or the Sony ULT field 7, which are 3 times large. So today we’re going to checkout the Brane X and we’re going to see how it compares to both the JBL Boombox 3 and the Sony ULT Field 7… cause the Brane X is genuinely super impressive for its size.