Features: 1) Models: RQA182, RQA2250, RQA2261, RQA25D, RQA057, RQA052, RQA317, RQA15334, RQA15822, RQA670, RQA999, RQA55 2) Material: metal 3) Low noise, large air volume, save electricity, long life Outer packing: Standard export packing