The company that owns the mine site where I work gave out little Bluetooth speakers as a gift for reaching the million man hour mark with no injuries. At first I had my doubt's about it as it was only a small 2 inch cube. But it puts out OK sound. It was made by a no name production company from China. But if it ever breaks I won't loose any sleep over it. Battery life is decent, it will run a good five hours solid before needing a recharge. It can't compare soundwise to my Logitech portable speaker. But for what it is it works really well. Very nice when I'm driving around site in a buggy, to have music playing( I can't wear headphones due to safety regs). I'd say go cheap and small for your speaker. Easy to carry and not a worry if you have to ever replace it.