EASY CONTROL HEATER：Knob Switch to turn the unit on 1. Turn knob to fan mode,the fan start to rotate as get a sound of "hua".2.When turn to I,the fan start to raise up temperature 3.Up to high warm wind speed when turn the knob to II.ENERGY EFFICIENT HEATER: With reliable ceramic heating technology, this heater in 3 seconds Stay warm in any small space, instead of heating the whole house with other centralized heaters.You don't have to worry about the electricity bill,this heater only 0.05-0.073 cents an hour.PORTABLE MINI HEATER: Dimensions 6.1 x 4.2x7.1 inch, 1.9 pounds light weight mini heater easy to carry . A small body releases a lot of energy.This 110-120V heater has 4.6 feet long cord fits for indoors use such as office, room, desk, home, bedroom.High appearance and doesn't take up space,easy to place in every corner.SAFE ROOM HEATER: 1.The heater is made of flame retardant material to achieve zero fire hazard. 2.Tip over protection shut off heater when it's knocked over, perfect for houses have kids and pets.3.TIP-OVER SWITCH will shut off when tipped forward or backward，More protection, more safety.MANUFACTURER WARRANTY: This heater enjoy a 1 year warranty.We promise our electric heater is produced under strict quality controPlease freely contact us first if any problems.