Air-pulse technology delivers gentle vibrations that suck and massage the clitoris at once without direct contact, across fourteen intensity levels with an alternating mode and a contact-only skin sensor start. Two head sizes included. Body-safe silicone, phthalate-, BPA-, and latex-free, 155 by 50 by 35 mm, IPX7 waterproof, 240 minutes per charge, five-year warranty.