Enjoy powerful sound with the Sony ULT WEAR Bluetooth headphones and Sony ULT FIELD 1 Bluetooth wireless speaker bundle. Designed for versatility, these headphones feature ULT1 function that gives deep low frequency, and ULT2 delivers superior bass. This powerful portable speaker comes equipped with a multiway strap, making it perfect for adventures while on the go. | Sony ULT WEAR Over-Ear Noise Cancelling Bluetooth Headphones & ULT FIELD 1 Waterproof Bluetooth Speaker - Black