Description Features Made of 100% silicone： Latex-Free Rubber-Free Phthalates-Free 1.5-2 Hours of Continuous Use Body-Safe Materials Waterproof Wireless USB Rechargeable 1-Year Warranty App controlled for any distance Available in 2 Sizes: Small = 1.5 inches (38 mm) diameter Medium = 1.75 inches (44.5 mm) diameter Both Sizes: Total length = 4.76 inches (121 mm) Insertable length = 3.8 inches (97 mm) Base Length = 3.15 inches (80 mm) Neck Width = 0.75 inches (19  mm) Only available in black as shown. Compatible With:  iPhone/iPad Air/iPad Mini/iPod Touch iOS 9.0 and later  Android 4.3 and later (with Bluetooth 4.0 enabled)  Mac (with Bluetooth 4.0 enabled) Windows PC (needs a Lovense USB Bluetooth Adapter to connect) What’s included: (1) Hush Butt Plug (1) Charging Cable (1) User Guide