I own many different Bluetooth speakers, but there is just one that I carry daily in my backpack. That's the JBL Flip 3. It is rugged and water-resistant, surprisingly loud and crisp, and has great battery life. I paid $100 for mine a few months back, but now you can pick up a refurbished Flip 3 for a whole lot less. HarmanAudio.com has them on sale for just .99 (- new on Amazon) in your choice of black, blue, or red.If you want a little more oomph and rumble, you might also consider a refurbished JBL Xtreme, the Flip 3's muscular older brother, which Harman is selling for 9.99 (9-5 on Amazon). It's also available in black, blue, or red.Even though the speakers are refurbished, they still come with all the original accessories and have the same length of warranty a brand new speaker would. I'm not the only one who thinks highly of these devices, Cam loves both of them as well – you can check out his full review here (I'll miss you bud).Economy shipping is free and no sales tax will be charged; the price you see is what you'll pay. Follow the links below if you want to pick one up for yourself.Source: JBL Flip 3, JBL Xtreme