This portable waterproof Bluetooth mini square shaped watercube speaker has a silicone rope, which makes it easy to grab and take on the go. You'll get 3+ hours of playtime thanks to the built-in 600mAh rechargeable lithium battery. Not only is this little speaker waterproof, it is also dust-proof and shock-proof as well. It's made of silicone and measures 3.25"W x 3.25"H x 1.375"D. Imprint it with your favorite logo or your company name. A gift box is included.