VRX:Receiver: 1.5G wireless audio and video transmission Available channels: Channel 12 VTX:Transmitter specifications Transmission frequency: 1.4G/1.5G/1.6G Number of channels: 12CH Transmitting power: 1500mW Theoretical transmission distance: 10-15KM Working temperature: -109℃~+509℃ Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. type:For FPV Quadcopter RC Drone Airplane Colour:Silver + Gold Material:Metal Package Contents: 1 x VRX 1 x VTX 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.