Fast in Five Minutes VPro a high frequency vibration device used to accelerate orthodontic tooth movement. When used at home for just 5 minutes a day, VPro may reduce discomfort and speed up treatment time by up to 50% When used with clear aligners for five minutes per day, VPro May Speed Up Treatment Time by up to 50% Accelerates Tooth Movement May Reduce Discomfort Reduces Office Visits May Improve Aligner Tracking May Improve Aligner Seating Can Increase Bone Density at Retentio I used it for 6 months. in perfect working condition. comes with the original charger cable and new mouthpiece, so you are basically paying half the price for exactly what you get at the dentist. Let me know if you have any questions.