Smallest and lightest portable 5-driver speaker with a built-in subwoofer | 5-driver design with one 2.5" Built-in neodymium subwoofer, two 1.5" High-frequency tweeters, two passive radiators - that further defies the laws of acoustic engineering by packing This 5-driver design in the smallest acoustic chamber, making it the lightest speaker of this class.Critically acclaimed sound signature | bi-amplified system - powered by two separate sets of amplifiers, dual orientation - two ways to place the speaker, Super wide Technology - an incredibly wide sound stage beyond one's imagination. It comes with roar and terabass Audio enhancement technologies.Award-winning water-resistant design | clinched the red dot Awards 2016. IPX6 rating to protect the speaker from all the water splashes, so you can still have fun with your music.12H battery life and feature-rich | built-in 5, 200mAh li-ion battery that's rechargeable by included power adapter. Comes packed with a whole range of useful features, including a built-in MP3/FLAC player, a voice recorder, a speakerphone, a battery bank. Also doubles as a USB sound Blaster external sound card for your PC or Mac.Connectivity options | Bluetooth 4.2, NFC, USB, microSD, aux-in. It comes with high quality wireless audio CODEC - AAC. Works with the sound Blaster connect for more customization to your listening preference.