Long Range Transmission? Coolpie wireless HDMI WL090 utilizes 5.8G technology and detachable antenna for long range transmission up to 350ft in open filed, 170ft indoors without any walls, 35-70ft through a wall. Provides smooth streaming experience. Whether you’re in a large living room, conference room, classroom, or theaters, this HDMI wireless ensures a reliable connection and outstanding performance. Enjoy your movies, games, and presentations with crystal-clear clarity. Share video content with family and friends on a projector, large-screen TV, or monitor, or use it for business presentations and teaching. PlugRead More