The Ultimate Ears Wonderboom 4 is back down to its Prime Day price of under $80

SAVE 20%: The Ultimate Ears Wonderboom 4 portable Bluetooth speaker is on sale at Amazon for just $79.99, down from the usual price of $99.99. That's a savings of $20 which also matches its discounted price during Prime Day.

Summer is a busy time for all of us. Whether you're trying to keep the kids entertained over summer break or jetting off on a European holiday, we're often looking at packed calendars. If you were too busy to shop the great deals during Amazon Prime Day in mid-July, you're still in luck. An ideal summer speaker is back on sale for it's Prime Day price again today.

As of July 30, the Ultimate Ears Wonderboom 4 portable Bluetooth speaker is just $79.99 at Amazon, marked down from the list price of $99.99. That's a 20% discount or a savings of $20. This sale price matches its Prime Day pricing.

When it comes to a portable Bluetooth speaker that's worthy of summer activities, you want something that's both durable and waterproof. Enter the Ultimate Ears Wonderboom 4, which not only carries those two accolades, it comes with an impressive battery life of up to 14 hours.

The Wonderboom 4 also excels when listening to tunes in the backyard thanks to the Outdoor Boost mode. Or bring it inside and Podcast mode which focuses on clear and rich vocals.

It's pool and beach worthy, thanks to waterproofing that can withstand submersion in water up to one meter deep for 30 minutes. This also means it's a great speaker for the shower.

If you're looking for a new Bluetooth speaker to accompany you to end-of-summer barbecues or the last visits to the beach, the Ultimate Ears Wonderboom 4 could be prefect. Thanks to today's sale price at Amazon, you'll be getting it for 20% off, which matches the discount we saw during Prime Day in mid-July. A win for sound quality and a win for sale price.