Product comes in travel lock mode. To unlock hold down + and - button for 5 seconds.<br /><br />The KEY Io Mini Massager by Jopen is your ticket to a world of pleasure. With 2 removable silicone sleeves and a waterproof ABS plastic body&#44; this vibrating mini massager is designed to give you an exhilarating ride. Io features 5 patterns of strong&#44; powerful vibrations. This mini massager is waterproof with an ABS plastic body. Io includes 2 removable sleeves. Also features stainless alloy&#44; easy push button. Uses 1 AA battery (not included). Comes with a soft&#44; lint-free carrying pouch. 4.25 x 1.