... AP8501 All electronic circuit, low energy consumption2 Two AA batteries operated3 Ionic air movement,silent operation4 Clean and fresh air ... AC or DC power. DC power from 4 pieces of AAA batteries may be use when you are traveling. When you ... 27Weight:110g DESCRIPTION:All electronic circuit, low energy consumptionTwo AA batteries operatedIonic air movement, silent operationClean and fresh air, promote ...