ANTOP UFO 720°Dual-Omni-Directional Outdoor HDTV Antenna Exclusive Smartpass. NEVER NEED TO ENDLESS ADJUSTMENT - 720° Dual Omni-directional reception for weak/moderate signal strength areas. Perfect for outdoor, attic, RV and marine used. AESTHETICALLY CLEAN DESIGN - Creative design in light weight aimed for simple DIY and SIMPLE SET-UP in 5 minutes. Tools-free and easy installation with minimum effort. SHIELDS AGAINST INTERFERENCE - Build in 4G LTE Filter shields against interference and blocks unwanted 3G and 4G wireless signals for stable performance. Enjoy smooth and crystal clear 4K HDTV experience. DELIVERS THE CORRECT RANGE - ANTOP Exclusive Smart pass technology Amplifier allow easier adjust the balance between short and long range reception, and the intelligent switch can avoid signal overload. DURABLE EXTERIOR&WEATHER RESISTANT - UV coated, weather resistant exterior design combined with anti-interference internal tech, protects signal reception to provide clear pictures and full channel capacity even during inclement weather.