Wirelessly transmitts HDMI signals with stereo audio up to 165ft with IR & Remote Control, use with Expandable HDMI Extender Kit (part # CE-H23711-S1) sold separately or Expandable HDMI Extender Receiver (part # CE-H23911-S1) sold separately Wirelessly transmits HDMI signals with stereo audio to a remote display (requires either HDMI Extender Kit part# CE-H23711-S1 sold separately or receiver unit part# CE-H23911-S1 sold separately) up to 165ft (line of sight). Note: The transmission distance will vary depending on building layout, electronic interference, walls and partitions, other environmental conditions, and may be much less than the maximum. Broadcast video content to up to two remotely located displays simultaneously, requires part# CE-H23911-S1 sold separately Supports video resolutions up to 1080p Full HD to deliver stunning and crystal clear images 5GHz Dual Antenna wireless technology with 10 selectable wireless channels prevent signal interference and provide optimal reception quality Supports up to 2 transmitter units (part# CE-H23811-S1 sold separately) and 2 receiver units (part# CE-H23911-S1 sold separately) allowing you to choose and broadcast any of the 2 sources to any of the 2 displays simultaneously With built-in switch button and included palm size remote control to select the wireless channels of both RX and TX units to retrieve different video content or set for channel pairing Included IR extension modules allow remote controlling the HDMI source device at the display unit Supports local HDMI signal output and facilitates the screen monitoring of the HDMI source Premium and durable aluminum housing improves heat dissipation and ensures system stability during long hours of operation Slim and low profile design easily adopts into versatile application environment, mounting brackets included for different installation requirements