Caston ST-C200 Car-Shaped Wireless Bluetooth Speaker – Drive Your Music Anywhere! Turn up the volume and bring your favorite tunes to life with the Caston ST-C200, a uniquely designed car-shaped wireless Bluetooth speaker that combines style, power, and versatility. Whether you’re at home, outdoors, or on the go, this portable speaker delivers impressive 10W Hi-Fi stereo sound that fills any space with rich, clear audio.