It is a compact travel size hair iron yet powerful enough for everyday on the go use. It works on a Lithium Ion 3.7V 1900mA cell which takes a total charging time of 2 hours and 40 minutes and can be used for a maximum of 45 minutes, which is not available in any other mini cordless flat irons. The negative ion ceramic tourmaline plate has a plate size of 0.71 x 2.95 inches which reaches a temperature of 190 degrees in about 40 seconds.