This ACDelco bluetooth speaker has some serious bumpin' sound that will change the way you listen to your favorite jams. With both NFC and Bluetooth pairing capabilities, this ACDelco Bumpster speaker can rock out with just about any device. Not to mention the 33 ft. Bluetooth range, which means you can switch songs from the next room. Features 360 degree omni stereo sound quality, built-in microphone for conference calls, made to fit perfectly in a cup holder or a golf cart, 10+ hours of play, and full color digital ACDelco graphic printed on top of the device. Size: 2.5" x 3.1" x 3.1". Weight: 7.4 oz. Individually boxed in high quality retail package.