Review on Zamkol Portable Bluetooth Speaker: 20W Stereo Sound, 24-Hour Playtime, IPX7 Waterproof & Wireless Stereo Pairing - Ideal for Home Party Picnics by Trey Angus

I was pleasantly surprised by the durability and performance of the speakers. They are quite heavy and don't feel cheap. Also a matte rubber finish, no plastic except for the power pack where the sound comes from. What impressed me the most was the performance. I use it for training at home. I watch workout videos at home and I want the audio to sync well with the video. Some of the cheaper Bluetooth speakers lag, but I didn't notice any lag with this one. Super soft and it can get really loud. (I used an iPad Air 2 to sync. I also paired it with an iPhone 11 and it was fine too.) Overall very satisfied.