With its beach-friendly waterproof design and pocketable size, Sony’s SRS-XB13 speaker makes a cool companion for hot summer days. With an IP67 rating for dust- and water-proofing plus a UV-coated finish, it’s built for all-weather outdoor action. Shorter than a common 12-ounce can, it is also very packable; with a webbing strap loop for lashing it to your pack or carrying around your wrist. Battery life: 16 hours. Available in a range of colors.