The JAM Hang Up is a Bluetooth speaker with the size of a large keychain. Because of the compact size, you can easily take the speaker with you. So you always have sound with you without sacrificing your storage space. You use the speaker outdoors, because it is dust and splashproof. This means that you use the speaker carefree near the pool. With a battery life of 8 hours, the speaker lasts longer than comparable models. This allows you to leave the power bank at home when you go to the beach for a day.