1、Auto restart function
2、Unlimited fan speed, low noise
3、Accurate and stable temperature control
4、Accurate and stable auto fan
5、5 working modes,Timer on/off
6、Sleep function
7、Double sensors
8、Prevent cold wind in heating mode
9、Defrost automatically
10、Pipe protection for higher temperature
11、Examine fault by itself
12、Updated reciever,good looking appearance,show intuitional