I own the Flip4 and i can honestly say that it is nothing short of fantastic. Solid Sound, solid build, amazing battery life and with IPX7 "waterproofing" its a really good buy for $60-$80 USD. IPX7 is kind of misleading labeling it as waterproof but if you do your research you should be just fine, IPX7 is defined as "immersion of up to 1 meter" so if you want to take it in the shower with you, then by all means, do it. But if you think you can just drop it in the 5' deep pool your experience may vary. With JBL's smartphone app, you can connect multiple JBL speakers together to get a more stereo sound (or just have a smart phone with the native capability.)