Based on IEEE802.11ah (Halow) protocol Data Handle rate: 16Mbps The 1 km transmission handle rate is higher than 1 Mbps Support multiple interfaces: serial port/network port With super ability to go around obstacle Work for IP camera transmitting by GSM networks , max. 500 meters with obstacle and 1000 meters in open air. Suitable for: wireless package; baby video monitoring; UAV ;robot industrial control; Internet of Things; Intelligent wearings. Colour:green Material:plastic Operating instructions: 1. Buckle one end of the to SMA wire on the and connect the other end to the antenna 2. Turn the switch of one module to the AP (receive) position, and turn an other switch to the STA (transmit) position 3. After the module is powered on, the five LED indicators flash for self inspection. After the self inspection is completed, the AP red indicator of the module be in on status and the first indicator on the left are always on too 4. the pairing button at the same time, then the signal indicators of AP module and STA module flashe, means successful pairing. Release the pairing button, and the signal indicator led of the two modules stay on,then finish. The actual product may have slight color difference or difference, which not affect the use Different batches may have different appearance label printing, which not affect the use Package Contents: 2 x Image Data Transmission Module 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.