Are you still worried about how the signal line is introduced into the room from the outside The renovated room cant be worn through the wall hole, the closed aluminum window cant pass through the coaxial signal line. How is it good Maybe this wall line can help you. The small antenna that is temporarily installed in the outdoor or balcony is inspected to be taken into the room, or temporarily used to adjust the star and worry about the outside air, it is not necessary to wear a hole in the wall. This window line Just solved it. Feature: Practical cable runs-up windows for the satellite connection, satellite TV or conventional antenna DTT without work. Especially useful for second homes, caravans, cottages, etc. The easy way to bring your cable indoors througha window or door frame, without drilling transparent, printed circuit membrane Specification: 1. Extremely thin design: 0.24 mm thick 2. F type female connectors 3. Cable length: 175mm 4. Shielding efficiency: 75 dB 5. Impedance: 75 6. Signal loss: 1dB 7. Overall length: 315mm 8.Material:printed circuit membrane Note: 1.No retail package. 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 pcs Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store