I've researched many Bluetooth speakers and have found that the JBL Micro Wireless are a great speaker for traveling. Great battery life, compact, durable, and awesome sound. The Micro Wireless have been around for a few years and I believe the latest generations are called the JBL Clip and Clip +. I can't speak to those,but I swear by the Micro. You can still find them on Amazon and eBay for $20-40 bucks.
