Main features of VRX:Channel 64CH;Support secondary development and DIY enthusiasts to use; High sensitivity reception -97dBm;5V power supply; Switching channels between high and low levels; Support welding with 6-digit 1.27mm dip switch to switch channels; Length and width dimensions 37 x 26.3mm;<br><br>Colour:As Shown Material:PC Due to different batches, there may be differences in product appearance and printed text, which will not affect use<br><br>Package Contents: 1 * FT3500 3.3GHz VRX Receiver Module<br><br>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.