The Sony ULT Power Sound Series ULT FIELD 1 Portable Wireless Speaker boasts big sound in a compact package. This Bluetooth speaker has a Passive Radiator Shape and a classic black colour. It produces a bold sound whether placed horizontally or vertically. The built-in carrying strap makes it easy to with you. Versatile control options allow you to use an app, voice control, or touch buttons to set the volume, play, pause, and more. With a Sound Diffusion Processor and echo-cancelling technology, you can enjoy clear sound wherever you go | Sony ULT Power Sound Series ULT FIELD 1 Portable Wireless Speaker in Black