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If you’ve never heard of the OontZ Angle 3 by Cambridge Soundworks, you’re not alone. It’s not the most recognizable brand in personal audio, and no one would ever claim that Cambridge is as big as a Bose or a Sony. But the OontZAngle 3 happens to be one of the best-selling portable Bluetooth speakers of all time on Amazon, and it has amassed more than 33,000 5-star ratings over that period of time.

Why are we telling you this now? On Monday, for one day only, Amazon is blowing out several different versions of the Angle 3 at the lowest prices of all time.

The main version of the speaker linked above isn’t included in the sale, but you’ll find several different models that are all newer than that third-generation speaker. First, the OontZ Angle Solo Bluetooth Portable Speaker is a more compact version of the Angle 3. It still packs terrific sound quality and impressive battery life though, and it has a $30 retail price. Right now, you can snag one for just $13.98, which is an all-time low by a sizeable margin. The other great deal you’ll find today on a single speaker is the OontZ Angle 3 Ultra PRO Edition Waterproof Bluetooth Speaker. It’s Cambridge’s top-of-the-line model and it retails for $70, but today you can get it for only $52.49.

OontZ Angle Solo - Bluetooth Portable Speaker, Compact Size, Surprisingly Loud Volume & Bass, 1… List Price:$16.99 Price:$13.98 You Save:$3.01 (18%) Available from Amazon, BGR may receive a commission Buy Now
OontZ Angle 3 Pro - Waterproof Bluetooth Speaker, 21-Watts Louder Volume, Exceptional Sound & B… List Price:$69.99 Price:$52.49 You Save:$17.50 (25%) Available from Amazon, BGR may receive a commission Buy Now

A great feature of several of Cambridge Soundworks’ OontZ speakers is that you can join more than one speaker and stream to both of them simultaneously. With that in mind, there are two deals on speaker pairs that you should definitely consider. An OontZ Angle 3 Ultra 2-pack of speakers retails for $70, and you can get it right now for $47.99 thanks to a discount and an extra $5 coupon on the Amazon page. You can also pick up an OontZ Angle 3 RainDance 2-pack for $42.99, which is a killer price for waterproof Bluetooth speakers that sound this good.

OontZ Angle 3 Ultra (4th Gen) Bluetooth 5.0 Speaker (Updated), Two Speaker Edition, 14 Watts, H… List Price:$69.99 Price:$47.99 You Save:$22.00 (31%) Available from Amazon, BGR may receive a commission Buy Now
OontZ Angle 3 RainDance - Portable Bluetooth Speaker, Two Speakers Edition, 10 Watts Power, Cry… List Price:$54.99 Price:$42.99 You Save:$12.00 (22%) Available from Amazon, BGR may receive a commission Buy Now

Last but not least, Cambridge is also offering a one-day discount on its best-selling Bluetooth earbuds. OontZ Angle 3 BudZ Bluetooth Wireless Earbuds offer solid sound quality, deep bass, and 8 hours of battery life, and you can get a pair for just $14.99 right now.

OontZ Angle 3 BudZ Bluetooth Wireless Earbuds - Waterproof Bluetooth Earbuds, Superior Sound wi… List Price:$19.99 Price:$14.99 You Save:$5.00 (25%) Available from Amazon, BGR may receive a commission Buy Now

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