How does the ULT button change the sound?

It adds a strong bass boost and raises sound pressure for a more club-like feel. Vocals can get pushed back when it is on at high volume.

Is it really waterproof and dustproof?

Yes. Sony rates it IP67, so it handles rain, splashes, sand and dust. It is also rated shockproof for everyday knocks.

Sony rates playback at up to 24 hours. A 10-minute quick charge gives about 2 hours of playback.

Yes. The USB-C port works as a power bank output, so you can top up a phone from the speaker's battery.

Yes. Two ULT FIELD 3 units can be paired for true stereo sound, and Party Connect links up to 100 compatible Sony speakers.

Yes. The Sony Sound Connect app adds a 7-band EQ and a Sound Field Optimizer for tuning the sound.

At vipoutlet.com, for $97.00, 53% under what the other stores charge, as of our latest check.

Rated 4.7 out of 5 from 7 ratings.

15 stores we checked sell it, including Tech0rini, vipoutlet.com, Amazon, Macy's, Focus Camera.

$97.00at vipoutlet.comChecked 1 h ago

53% under what the other stores charge

Compared across 15 stores. Prices are checked against each store and labelled with when.

It checks today's price at every store, compares the alternatives and answers in about a minute.