Tanda zap is clinically proven to clear or fade blemishes within 24 hours. Tanda zap is the triple threat for pimples it uses powerful blue light to destroy acne causing bacteria while gentle vibration and warming help to open pores so bacteria has nowhere to hide. With 1000 uses, this device only costs 5 cents per treatment. With this device you'll get no pain, no dryness, no irritation and best of all no pimples. Starts clearing blemishes immediately. Eliminates acne causing bacteria. Can be used on all skin types and tones. This device comes with 3 aaa batteries.