The JBL GO series is a very popular portable Bluetooth speaker series since its first release in 2015, and has served many customers around the world and has sold 43 million units worldwide. The latest model "Go Essential" has an iconic logo on the front, and is a new model that combines a pocketable size and powerful sound like JBL. The sound quality surface is a 5.7 oz (177 g) palm-sized design that is ultra lightweight and easy to carry, yet comes with a 1.6 inch (40 mm) diameter full range speaker and passive radiator. You can enjoy powerful JBL sound that is more than the size. IPX7 *It is also equipped with waterproof performance so you can use it safely around the kitchen or in the bathroom.