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 pairing, connect the TX to device, like a laptop, and the RX to the display, such as a TV, ensuring both are powered. Step4: Use devices in an open space for optimal signal transfer. Re-pair when adding new TX or RX units and avoid extreme temperatures or humidity. Set up: Wireless transmitter (TX): Connect the transmitter to the out port of the HD player(e.g. DVD, set-top box ,etc.) Wireless Receiver (RX): Cnnnect the receiver to the input of the display (HDTV, projector, etc) Power Connection Colour:As Shown Material:Plastic Package Contents: 1 * Wireless Transmitter 1 * Wireless Receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.