There are the following types of vibrating panties that are produced by the sex toys industry:
Remote control vibrating panty. This is a discreet vibrator operated from a remote control device that can usually work at the distance of up to several meters. The panties' vibrator is controlled by users or by their partners during foreplay or during masturbation. Some women wear the remote control panties under their clothes and turn the vibrating bullet on wherever they wish. Usually such models are designed noiseless for hiding the sound of vibrating element.
Crotchless vibrating panty. This model is designed for using during the intercourse. The crotchless panties are intended for easy access to the genitalia, with a vibrating bullet massaging the clitoris.
Vibrating panty with removable bullet. Some vibrating elements of the panties are designed for removing and using in any other erotic activities. The bullet is inserted into a special hidden pouch placed in the inner side of the panties. But there are also attachable bullets used with any panties, thongs or g-strings. The bullet is operated by the smallest watch batteries.
Vibrating panties are usually made out of the normal fabrics used in manufacturing the female lingerie: nylon, cotton, mesh, lace, leather, etc., as well as latex. In all cases the material is stretchable to fit many sizes and comfortable for wearing for extended periods of time.