Do not tighten the bolts tightly for the cross beam until you get the brackets in place, then tighten the bolts. Used for fun 00 these are only 19. Once connected however, the range is fantastic and the speaker stays connected upstairs even if I go downstairs, mainly in part to the speaker using Bluetooth 5. 5mm headphone adapter. This lock works perfectly and takes the guesswork out of trailer theft. Great customer service from Amazon as usual! This is pretty much the only stand alone radio unit for flight simulation available on the market. These are very cute and comfortable. I like the blue on it too, slick.