Weighing in at 13 pounds and over a foot tall, Ultimate Ears' Hyperboom is designed for entertaining. It's three times as loud as the Megaboom 3 with six times the bass, thanks to two 4.5" woofers, two 1" tweeters, and two 3.5" x 7.5" passive radiators. It has a microphone, but it's not constantly listening. Instead, it's used to automatically adapt the sound to the current space, while switching between two Bluetooth devices, an auxiliary input, and an optical input can be done with a single touch. The built-in battery lasts up to 24 hours, charges in just 2.6 hours, and can be used to charge another device via the onboard USB port.