The UE MEGABOOM is the most powerful Ultimate Ears Bluetooth speaker. The speaker produces a high volume, which makes it suitable for larger rooms or garden parties. The speaker has a shockproof design, so it continues to play music when it bumps into something. It can also be underwater at 1m for 30 minutes. This means you can bring it to the beach or on a boat without worrying. The battery life is 20 hours, so you can listen to music the entire day. The distance between the smartphone and the speaker can be up to 45m. That way, your smartphone doesn't have to be near the speaker to play music.