Receiver:1.5G wireless audio and video transmission Available channels:Channel 12 Working voltage:12V Working current:250mA Due to different batches, the appearance, color and printed words of the product , which not affect the use. colour:Random Color (Note: Random color, don't accept the specified color.) Material:Metal Package Contents: 1 * VRX 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.