Product Review

Description: INSTRUCTIONS: Preheat with 2clicks LED button 5clicks on button to power on and off Adjustable voltage by click button 3times 3Colors changeable when different voltage . SPECIFICATIONS: Model - Preheat battery Feature - Adjust voltage battery with preheat function Diameter - 11mm Length - 87mm Battery Capacity - 380mah Type - Rechargeable Thread - 510/ego Battery Voltage - 3.7V-4.1V Battery Life - Very Long 3colors adjustable voltage - When 3.7v, LED green, when 3.9v, LED blue; when 4.1V, LED red Color - Random