Braven XXL Portable Outdoor Bluetooth Speaker (Refurbished)

It actually sounds really good. You just have to trust us here. You know we would tell you if it was bullshit.
Portable, but also 18 friggin’ pounds.
Water resistant, dirtproof, and sandproof, (which my computer wants to correct to “soundproof,” but trust me: this is quite literally the opposite of soundproof).
It’s got that Bluetooth and that aux and can charge stuff via USB.
Built with four 10-Watt HD Audio Drivers and one 50-Watt Subwoofer to really bring out dejection in Ira Glass’s voice on that new This American Life episode.
Its 15,600mAh battery can go for up to 14 hours of uninterrupted playtime, leaving a nice even 10 hours of the day for silent reflection.
Model Number: BRV-XXL, perhaps the most efficient and straightforward model number ever.

Model: BRV-XXL
Condition: Refurbished
Connections: Bluetooth, 3.5mm AUX
Adjustable bass/treble settings
(4) 10-watt drivers, (1) 50-watt 5.25" subwoofer and (2) passive radiators
Battery: 15,600mAh
Battery life: 14 hours
Waterproof rating: IPX5 (Water projected by a nozzle (6.3 mm) against enclosure from any direction shall have no harmful effects)
Built-in speakerphone mic and 3.5mm mic port in case you want to yell through it
Shockproof exterior
Dimensions: 20.2" x 8.2 x 9.5
Weight: 18lb
5V 1A USB port for charging phones
NFC for quick pairing
User Manual