The Micro Wanachi keychain may be the world's tiniest massager that's big on thrills! Just 2.5 inches tall, this small tickler is ideal for on the run fun, anywhere and then any time! Just switch the ON/OFF switch and you're ready for any good buzz. Ensure that it stays in your keys and you'll always be ready for doing things! Batteries incorporated. Caution: this vibrator isn't meant for therapeutic purposes and it is suggested for exterior only use. Prolonged and frequent me is not suggested or suggested because these products are offered for novelty purposes only. This vibrator ought to be combined with discretion. Vibrating small massager requires AG13 batteries incorporated. Phthalate free materials used Abs plastic, fiberglass