Wireless Transmitter and Receiver allows you to transmit and extend signals up to 150 meters (492 FT) wirelessly. -floor range up to 5m/16ft support through wall transmission. It is a good solution for Wedding and Parties,Meeting Presentation, Home Entertainment, Streaming Video, etc. 150m Long-Range Transmission includes detachable antennas, enabling robust long-range performance. Plug and Play Convenience, it eliminates cable clutter and offers flexibility for use anywhere. Support 1 transmitters to multiple receivers(max 4PCS), and support 1 receivers to multiple transmitters(max 6PCS). No need for WiFi network or Bluetooth, the connection is and faster. Outdoor Clear Distance 150 meters,Indoor Distance without Walls 50 meter,Indoor Distance through One Wall 10-25 meter,The upper and lower floors are better within 5meter. Mini size for easy carrying and storage. Multi-scenario application: Wedding and Parties, Meeting Presentation, Home Entertainment, Streaming Video. Compatible with multiple operating systems: Multiple-Compatibility: Android iOS OS; Transmitter(TX): Tablet Smartphone, Set-top-box, for Switch & for /5, PC computer, Laptop, DV, Camera; Receiver (RX): Monitor,Projector, HD TV Note:An extra interface adapter is needed when paired with a smartphone or tablets (not included in the package) Pairing: Note: The device has been paired before leaving the factory, and the user does not need to re-pair. If it can't be used normally the USB power supply of the device may be insufficient, please use the phone charger to power it. If it still can't be used normaly then re-pair. The pairing is as follows. Step1: Connect the power supply to both the transmitter (TX) and receiver (RX) using the provided cables. Press and hold the pairing button on each for 5 seconds until the LED , then release. Step2: Attach the dual-female adapter. A steady light on the TX and flashing LED on the RX indicate a successful pair. Step3: After pairi