DemerBox

The DemerBox is a waterproof, Bluetooth speaker designed for outdoor use that comes in a Pelican case. It is built to be rugged and durable, withstanding water, rain, hail, dirt, sand, heat, and snow. It's also crushproof. It has clear audio and powerful bass and can be paired with multiple other DemerBox speakers to create an outdoor sound system. 
Can last up to 40 hours between charges. It also has internal USB charging to keep your devices charged. The DemerBox's Pelican case has internal dry storage to keep valuables safe and dry. The DemerBox is lightweight and compact and can connect wirelessly with Bluetooth at a range of up to 100 feet. The DemerBox is designed with sustainability in mind and is fully serviceable. The DemerBox is handbuilt in the USA.