Enjoy your favourite tracks on the go with this Sony ULT FIELD 3 speaker. Waterproof and dustproof, it is ready for your boating trips, beach parties, and more. Designed to be carried in one hand, it comes with a stowable shoulder strap to make it easy to transport. Up to 24 hours of battery life keeps you going all day, every day. | Sony ULT FIELD 3 Waterproof Bluetooth Wireless Speaker - Black