Description - rechargeable lithium ion battery. Safe and gentle on the most sensitive skin no more painful or smelly hair removal methods no more nicks, cuts, bumps or burns use anywhere thereÃ¢ÂÂs unwanted hair - safe on all skin types and colours how to use - it is move power switch to "on" position (toward the sensa-light head) power LED flashes when "on" front LEDs (near sensa-light head) will flash at 0. 5 Seconds to let you know product is ready when the sensa-light head comes in contact with your skin, the unit will activate and remove hair as long as the head is against your skin the unit will go to "sleep, " automatically deactivate, 6 seconds after you remove the sensa-light head from your skin the unit will reactivate when reapplied to skin upon completing the hair removal, simply move the power switch toÃ¢ÂÂoffÃ¢ÂÂto shut down the unit trimmer size - 12. 5x1. 5Cm package includes - 1-rechargableyes hair remover 1-USB charger cord 1-cleaning brush 1-instruction manual.