NUU's Splash Trail Edition Waterproof Bluetooth Speaker weighs less than a pound, so feel free to take it backpacking and hiking. Its rugged case stays waterproof up to three feet, and it floats in case it falls in the river. Bluetooth wireless connectivity adds a lot of convenience by connecting to Bluetooth compatible devices as far as 30 feet. And as for sound, the Splash Trail Edition features two neodymium speaker drivers with a passive bass radiator to deliver crisp sound. NUU added a rechargeable battery that lasts for 10 hours and a built in mic so you can take calls.