140W Max Booming Bass: Feel the power of the bass in every song with dual woofers for depth and clarity. And with BassUp 2.0, the output is boosted from 100W to a staggering 140W max—that's 160% more than the first generation of BassUp. 2+2 Stereo Clarity: Dual 50W woofers and dual 20W tweeters deliver crisp highs and deep lows, balanced by smart crossover technology for an immersive audio experience. 30W Fast Charging and Built-In Power Bank: Pair with a 30W charger to fully charge Boom 2 Plus portable speaker in just 3 hours and keep the beats playing for 20 hours. And with the built-in power bank, you can give your phone and other essentials a 10W charge wherever you are. (Playtime may vary based on volume level and playback content.