21 CFR §884.5960

1. (a)Identification. A genital vibrator for therapeutic use is an electrically operated device intended and labeled for therapeutic use in the treatment of sexual dysfunction or as an adjunct to Kegel's exercise (tightening of the muscles of the pelvic floor to increase muscle tone).
2. (b)Classification. Class II (performance standards). The device is exempt from the premarket notification procedures in part 807, subpart E, of this chapter subject to the limitations in § 884.9.