Good vibes only. The patented Vac-U Plug is the foundation of the Vac-U-Lock system of interchangeable attachments. harnesses. and accessories. and it just got a major upgrade. Featuring 7 vibrating functions and a wireless remote. the Vibrating Plug turns any attachment into a powerful vibrator for an even more stimulating. satisfying Vac-U-Lock experience. Vac-U-Lock is the world's first and only patented pleasure system. revolutionizing harness play and offering endless possibilities to mix and match within your collection to build the perfect toy.