The Sentry Small Black Portable Bluetooth speaker is a branded oval-shaped unit made of plastic, designed for universal compatibility. It features Bluetooth 5.0 connectivity and various audio inputs including AUX and USB. This portable speaker by Sentry offers a sleek black color and delivers quality sound for an immersive audio experience on-the-go. Perfect for music lovers looking for a compact yet powerful Bluetooth speaker, the Sentry is a versatile and convenient choice for any portable audio setup.