As seen on Shark Tank, the RokBlok vinyl bluetooth speaker is an all-in-one record runner which sounds great...on paper. Run this little device along your record - no need for expensive pre amps, speakers, dacs or wires. Pair easily with any bluetooth enabled speaker for even better quality sound! In reality, however, this item failed to live up to expectations. You'll see in the video a full, detailed review of the product complete with audio and bluetooth tests.