plusOne Vibrating Bullet Waterproof Rechargeable Each jewelosco SIMUL 9 Speed Vibrating Couples Girth Enhancer Ring Lynk Massage Guns (and other vibrating treatment) Tend uses Direct Vibration Therapy, sometimes known as Focal Vibration therapy. , Tend has a unique pin point tip to access hard to reach parts of the body. , Focal Vibration Therapy (FVT) is a type Swedish Massage Techniques Vibration