Ewa is a brand of portable wireless speakers that are designed for outdoor use. They are known for their waterproof and durable design, as well as their long battery life and powerful sound. They often come equipped with Bluetooth connectivity, allowing users to easily stream music from their smartphones or other devices. They are often used for outdoor activities such as hiking, camping, and picnics. Some Ewa speakers also come with a built-in microphone, allowing them to be used as a speakerphone for taking calls.