Rock out to your favorite records with RokBlok’s built-in speaker, or wirelessly send your music to any Bluetooth device for an even bigger sound. Measuring only 4 X 2 inches long, you can use RokBlok to listen to your favorite records anywhere you can find a flat surface. Simply place RokBlok on a record, and raise the control lever to start playing. RokBlok’s powerful built-in speaker delivers a pure analog listening experience anywhere, and you can rock out to your favorite tunes for up to 4 hours on a single charge.