The Screaming O has all the tools you need for the best sex of your lives, and with the Screaming O Battery Packs you’ll never be without your favorite trusted vibrator! With convenient bedside dispensers, these AG-13 batteries come compactly and neatly stored for whenever you need them, and never will you be left fumbling when your vibrator peters out. No matter which super-strong bullet-powered vibrator you’re boosting – there’s a set of backup batteries by your side.