On the inside, Pulse ($200) is very similar to JBL's previous Flip and Charge Bluetooth wireless speakers, the former an acoustically strong performer for its sub-$100 price. This time, the sound has been paired up with a colorful light array that runs almost all the way around the speaker's tubular body. An LED system allows for a huge number of colors, and there are some cool automatic programs that can be set to produce light effects that are either…
