The speaker at the picnic was a rock space s30, available at Amazon; [ www.amazon.com/Speaker-Portable-Bluetooth-Superior-Enhanced/dp/B075V3SZ9W?SubscriptionId=AKIAILSHYYTFIVPWUY6Q&tag=duckduckgo-d-20&linkCode=xm2&camp=2025&creative=165953&creativeASIN=B075V3SZ9W ]