Receiving frequency: 5725-5865MHz; 7 channels Receiving sensitivity: -90dBm Frequency control: built-in frequency phase-locked loop AV output: direct output of analog audio and video signals Supply voltage: 3.5-5.5V Supply current: 170mA Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Specification:B:RX5808+with audio+normal frequency Colour:Random Color, don't accept the specified color Material:PCB Size:28x23x3mm Package Contents: 2 x Receiver 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.