Air King 9166F 20" Whole House Window Fan Batteries RF can be effectively shielded

RF can be effectively shielded by placing any metal sheet (aluminum foil or aluminum siding) or metal mesh (aluminum screen door material) between you and the RF source

2°(the rest)

CONTROL LIGHTS WITH YOUR VOICE: Easily connect your Philips Hue Bluetooth smart lighting directly with your voice using Alexa or Google Assistant

Note：It only supports 2

Air King 9166F 20" Whole House Window Fan Batteries RF can be effectively shielded3 speed, 1 6 HP, 120V, 1 phase, permanently lubricated Front mounted rotary switch and RPM (High Med Low) is 1600 1450 1100. Compliance: ETL, OSHA. Front Mounted Switch, Impact Resistant Plastic Housing, Powder Coated Steel Front Grill and Blade OSHA approved. dB (High Med Low) 64 57 50 Fits window openings that are between 27" to 38 wide by 26. 25" high. Cube (feet): 5. 42