


Boss Audio 4" BM40AMPBT Amplified Waketower Speakers - Matte Black - 500W
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Boss Audio 4" BM40AMPBT Amplified Waketower Speakers - Matte Black - 500WOverview 4" BM40AMPBT Amplified Waketower Speakers Matte Black 500W These Matte Black 8" BM40AMPBT Amplified waketower speakers provide next level audio through a stylish design. Boss Audio tower speakers are marine grade, so you can have outstanding sound quality on your boat or UTV. Features: Full Range Class D Amplifier Fits 1" to 2" wake tower pipes IPX5 rated in line remote w illuminated soft touch controls Polypropylene Woofer Cone and Rubber
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- Final sale items are not eligible for returns or exchanges.
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4.8 ★★★★★
Based on 148 reviews
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Product Reviews
★★★★★ 5
Great watch for preteen and above
My 12yo loves this. It’s stylish, durable and a great quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 9, 2025
★★★★★ 5
Love the blue numbers
Not quite sure how to rate this. It's an attractive basic analog watch; I especially like the blue numbers. And my experience with the reliability and durability of Casio has always been terrific. But... it's huge. I am stunned to see the other review that states that this watch is too small and is suitable only for a child; I think the reviewer must have been reviewing some other model. This one is larger than any other watch I own, including a hand-me-down men's watch that I got from a friend. This is NOT a unisex watch and should not be advertised as such. But if Casio would make the same thing in a women's model, I would snap it up.
UPDATE: When my smaller watch died, I finally started wearing this one. I've gotten used to the size, and now it looks and feels normal to me instead of huge. I adore the blue numbers--they make me happy every time I look at the watch.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 6, 2016
★★★★★ 4
Smaller than I thought it would be
Nice watch, very small, definitely a woman's or child's watch
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2025
★★★★★ 5
Works in the pool!
This is my second watch like this. I wear it almost every day, including in aqua class. I like the size - big enough to read easily, but not too big. I originally bout this watch because I wanted an inexpensive watch to wear to the gym. I find myself reaching for it even when I am not going to the gym!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 28, 2017
★★★★★ 1
Stopped working
Maybe it's a one-off but it stopped working very shortly after I received it and I had to return it. Casio used to be a good brand.
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Reviewed in the United States on December 21, 2025
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