The Broadcast Distance - Our FM Transmitter will let you broadcast 150 feet throughout your entire home, office, backyard, etc. | Large Digital Screen Display - Easily read what frequency you're broadcasting on with the LCD screen display | Covers Full FM Band - You can transmit across the entire public FM band (88.1 to 107.9) on both even and odd frequencies | Adjustable 6.5” SMA helical antenna features a conducting wire wound tightly in the shape of helix, increasing efficiency without increasing your antenna size. | US/EU Pre-emphasis matches the emphasis to the FM radios in your region and reduces noise at higher frequencies