Experience front row sounds with the Sony ULT FIELD 1 Bluetooth wireless speaker. This powerful portable speaker comes equipped with a multiway strap, making it perfect for adventures while on the go. And because this portable speaker is water, dust, rust, and shockproof, you can take it wherever the road takes you, and enjoy great sounds as you roam. | Sony ULT FIELD 1 Waterproof Bluetooth Wireless Speaker - Black