Line-Shape Diffuser distributes music evenly across a wide sound stage IP67 water, dust, and shockproof design X-Balanced Speaker Unit provide power, clarity, and distortion-free sound Up to 24-hour battery life with quick charging Personalized sound control via the Sony | Music Center app Stream wirelessly via BLUETOOTH®3,5 Microphone w/ echo cancelling technology The Fiestable app enhances the mood with cool effects Add to the fun with up to 100 compatible speakers via Party Connect