Bought the combo, scope, Benjamin Marauder PCP air rifle, and VEVOR air compressor. Scope and rifle work great. The VEVOR air compressor never pumped one once of air. After reading the instructions I connected to the rifle , plugged it in and turned it on. Immediately it flashed a 078 (was told this is heat inside compressor), a 13.6 (even VEVOR doesn't know what that means), and E4 (found out it means the tank I'm trying to fill is already full). It never had any output of air...How can it be full? I contacted Home Decor Specialist (from Shanghai China) who offered me a discount, then asked for pictures and a video (which I sent to them), then they wanted ME to fix their air compressor! Are they out of their minds? I took the compressor back to Walmart the next day and they sent it back to the warehouse in Florence, NJ. Walmart initiated a refund and guess what I got? $22.00!!! I paid $208.43 for this compressor and all I get is $22.00??? How does Walmart allow a company with a 68% success rating even operate on their website? I'm finished with Walmart! I'm not the only one this has happened to. Just read the reviews of VEVOR air compressors on Google, Yahoo, Yelp, BBB, etc... There is a pattern to their method of ripping off customers.