I love Altec Lansing, but I don’t have experience with this particular set. I was looking for a speaker for my backyard and I noticed this one is $99 when the black speaker is $250. Seems like it can be paired with more than one for more punch!
Altec Lansing
IMW888-SBLUE
Rugged Waterproof Bluetooth Speaker
Water Resistant
Multiple Pairing Of Speakers
Aluminum Exterior
https://www.amazon.com/dp/B01KKKTNEI