Last year, Sony rebranded its portable speaker lineup under the ULT umbrella with new models classified as either Field or Tower. The former are the more “traditional” Bluetooth options while the latter are the party box, karaoke machine sort of devices. Just like 2024, the company has three new entries in the ULT lineup this time around with the ULT Field 3, ULT Field 5 and ULT Tower 9. Those first two fill the mid-range gap between the current ULT Field 7 and ULT Field 1 while the last item is a smaller alternative to the ULT Tower 10.