20 Vibration patterns and 8 speed strengths to tailor your massage experience. These massagers may be small. but don't let that decieve you. You will be suprised how powerful these can be! Bendable neck for flexible massage action right where you need it. Special high strength motor provides exceptional power. yet quiet vibrations. Ultra soft. premium grade silicone for complete comfort. The mini Halo is rechargeable and comes with a USB power cord with optional attachable plug in. These mini wands are water-resistant.