Sharp GX-BT190-BK Portable Bluetooth Speaker — IP67 Waterproof, Floats, Up to 15-Hour Battery, 6 RGB LED Modes

The Sharp GX-BT190-BK is a portable Bluetooth speaker that floats. That is not a marketing flourish — Sharp built it to sit on the surface instead of sinking, so a knock off the dock costs you a wet sleeve rather than a speaker. As a waterproof Bluetooth speaker it carries a full IP67 rating, which covers dust and complete immersion, not just splashes. At 3 x 3.5 x 3.2 inches and half a pound, it is a compact Bluetooth speaker you throw in a bag without thinking about it.

The battery runs up to 15 hours — a beach day, a campsite afternoon and the drive home on one charge — and refills over USB-C in about two and a half hours. Bluetooth 5.0 pairs in seconds and holds across a backyard. A built-in microphone takes calls without digging your phone out, and six RGB LED modes wrap the grille and sync to the music. It is the kind of feature that sounds like a gimmick until the second drink.

Sound is 5 W RMS with a single passive radiator behind it: clear and bright, which is what carries outdoors where bass disappears anyway. It will not fill a backyard the way the Sharp PS-935 does, and we would rather say so than oversell it. What this one does is travel — a strap loop for a bag or a bike, a shell that shrugs off sand, and true wireless stereo so two of them split left and right across a bigger space. Under fifty dollars puts it in gift territory. It also earns its keep as a mini Bluetooth speaker for the shower, the pool deck or the kayak.