ENACFIRE's Soundtank is a new portable Bluetooth speaker with an IPX7 rating for ingress-protection, and, thus, that "take-anywhere" selling point. Inside, it is packed with 2x20W speakers that support a Bass+ feature. The new audio accessory is also USB type C, which powers a "24-hour" battery.
https://www.notebookcheck.net/ENACFIRE-claims-its-new-wireless-IPX7-rated-Soundtank-speaker-lasts-24-hours-per-charge.510999.0.html