... ,8 hours Time 3)RC,Ice box,LED Display,heater 4)CB,CE,EMF 5)OEM,ODM Function instruction ... of Chinese air cooler and heater ( air cooler ,air cooler fan) 1. Cool: It will ... effect would be more obvious while using the cooler.2. Heater: It will blow out the warm or heat wind ... obvious while using the air cooler.It can keep the room in a fit humidity.4. Wind way: Auto blow ...