Feature:1. It can be close in RV or other window because of how flat it is.2. Very easy to pass through narrow windows and doors, suitable for connecting indoor miners and outdoor antennas,3. Applications include: low data rate communication networks, long distance LoRa nodes, IoT and M2M nodes, Industrial and environmental monitoring, smart metering applications, LoRaWAN, Multipoint and NLOS applications, Finestra, RAK V1 V2 Nebra Bobcat EasyLinkIn SenseCAP M1 and SyncroB. This Helium Hotspot HNT mining miner etc antennaSpecification:Length: 30cmImpedance: 50 OHM Frequency: 0-6GHzCompatible with 802.11ac, 802.11n, 802.11g and 802.11b WiFiCable Adapter: RP-SMA Male to n-Female Package List:1 * Extension CableNote:Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Manual measurement, please allow 1-10mm error. Thank you for your understanding.