1. If your TV doesn't have a built-in tuner, a Set Top Box is needed to pull in HDTV signals.<br/>2. If the signal is not satisfying or only a few channels are available, try connecting the amplifier.Keep the TV antenna away from the sources of interference, keep the TV antenna away from those big power consumption devices, such as air conditioner, elevator, hair dryer and microwave oven etc. Areas with large obstructions such as valleys, mountains,Building, etc<br/>3. Antenna signal strength can vary depending on distance from the tower, terrain, and weather. Reposition the antenna in a different location if needed. It is best for the antenna to be in line of sight with the TV tower(s) and avoid obstructions. Always re-scan for channels after moving the antenna.<br/>Features: 1.light as a feather,allows you to place it anywhere and no power required. 2.match your home decoration,can be easily behind a picture,bookshelf or television. 3.fast and easy to set up-Unwrap,Plug it in and scan channels<br/>4.you can put it on the wall,on the table or the window(strongly recommended)and it will make you enjoy watching crystal clear digital&HD shows with many opportunities.<br/>Description:<br/>Receive up to 1080p HD content from local broadcasting towers and stations without any monthly subscriptions. Connect this antenna to the antenna port of your TV set.<br/>A range of up to 200 miles allows for great signal traversal to keep the playback smooth without any hiccups or freezing.<br/>The ultra-thin design of the antenna means it will keep a low profile while attached onto walls or windows. This helps to keep the entertainment area sleek and free from clutter.<br/>Specification:<br/>Support 1080p,4K<br/>Support DVB-T2<br/>200miles range<br/>Coaxial Cable: About 4M length<br/>Connector Type: F - head with TV adapter<br/>V.S.W.R.: ≤1.5, Max:1<br/>Impedance: 75Ohm<br/>Multi-directional capability<br/>Call out all "Free" channels<br/>Gain:20 dBi(with amplifier)<br/>Working Frequency: 174~240MHz,470~862MHz<br/>Product size: 220 x 140 x 0.6mm<br/>Mounting Paste<br/>Operation Temperature : -45 - 85 degC<br/>Storage Temperature : -45 - 85 degC<br/>Colour: Black<br/>Material: PC+Metal<br/>Package Contents:<br/>1 x TV antenna (different product batches, the accessories at the connection between the antenna and the cable may have random styles, but the functions are the same Do not accept designation)<br/>1 x Signal amplifier (the appearance and style of the amplifier may be randomly issued with different batches Do not accept designation)<br/>Only the above package content, other products are not included.<br/>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.