The Perfect Vision Birdog USB Plus V4 Satellite Signal Meter is a high-quality device that allows you to easily find and lock onto satellite signals. It comes with a convenient case and cord for added protection and ease of use. This unit is designed with a digital display and has one input and one output. It is a dual-band device and is manufactured in the United Kingdom. The unit quantity is one and it is suitable for use with Perfect Vision products. Item is used but still in excellent condition. Have USB and car charging cord but not the wall plug in,also works with batteries