Review on IPX7 Waterproof Bluetooth Speakers - DuoTen Wireless Portable Speakers with LED Display, FM Radio, Suction Cup, Light Show, Loud Stereo Sound and Bass for Shower, Pool, Party, Travel, Outdoors by Jennifer Johnson

This speaker is packed with great features, controls and options. I feel like this is one of the few I've seen where they've clearly thought of everything you could need. Very high quality overall design. Great battery life and ease of use for something with 6-10 buttons. The quality of the speaker itself (sound quality) was about as expected. That might not sound great at high volumes, but it's more than enough for most situations. If you're expecting quality speakers for under $50 that run on batteries and have Bluetooth (as some other reviewers seem to think), you don't know what you're buying. I haven't tried submerging it in water and you won't find a speaker that works in such conditions. The suction cup seems to be sufficient and I can't comment on the stereo function with two speakers.