RCstyle Radar Antenna Range Booster for DJI Phantom 4/4 Pro Phantom 3 Professional Advanced Inspire 1 Controller Transmitter Signal Extend (gold) To improves both remote control and Wifi video connection performance for DJI Phantom 3 Inspire 1. Full range coverage,strong and stable signal,Compact design and good firmness. Lightweight,durable,pratical and convenient to use It improves both remote control and Wi-Fi video connection performance for DJI Phantom 3 / Inspire 1, In an open testing area, The actual measurement distance greater than 2.8KM. we are with its own brand RCstyle, we have the best quality products and service experience for the UAV enthusiasts.