Review on 🔊 DBSOARS Waterproof Portable Bluetooth Speaker - Exclusive Patented Bass, 50W (70W Peak) Wireless Outdoor Speaker, Sync with 100+ Speakers, 30H Playtime, 10000mAh Power Bank - Ideal for Party, Pool, Outdoor by Nonito Shin

I bought this to add some bass to a pair of dbsoars torch speakers I bought earlier. It does that well, but I've tried adjusting all three speakers on my deck and found that every time you change the music volume on the main speaker or with my phone, that speaker's volume resets to maximum, requiring me to manually adjust the volume on that speaker. Aggravating.