Sterling Collection 7 Function Controller is a compact design single jack. 7 functions independent on/off button. Power control is made using phthalate free, non-toxic materials ABS plastic with silver plating. Vibrating control requires 3 AA batteries, not included. Do not leave batteries in the vibrator between uses. Please note this item does not come with a bullet vibrator. Power control measures 4 inches long by 2 inches wide. Bulk weight: 1.6 ounces. Always clean before and after use. Category: For Women, Bullets, Beads & Balls, Bullets. Sterling Collection 7 Function Control is a registered trademark for California Exotic Novelties. Sex toys and sexual wellness.