Description: Item Type: Air Cooler Filter Compatible for mini air coolers. Lightweight and convenient to carry. Easy and convenient to use, you can use it anywhere you like. Simple and easy to operate, the filter is removable and washable. Specification: Material: ABS Plastic Size: Approx. 13.7x11.2x6.5cm/5.39x4.40x2.55inch Gain: 40dbi Frequency range: 600-6000 (MHz) Output impedance: 50 (Ω) Standing wave ratio ≤: 1.5 (dB) Package Includes: 1 Piece Air Cooler Filter 1 Piece User Manual Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.