The Techno Strobe is a vibrating cock ring that can be operated with a downloadable APP or by itself. Made from premium materials, Strobe is rechargeable, water resistant, and suitable with all lubricants. 3 speeds, 6 functions, & 9 modes. Waterproof Rating - IPX6. Scan QR code on box for APP download. Material: Silicone Measurements: (Total L x W x H) - 2.6" x 2.28" x 1.49"