We used bike locks & cables etc, but I think the product would be improved with some sort of means to secure to vehicle or hitch -- else there is a possibility the carrier, loaded w your bikes, could be stolen 3) When in place, esp. I have really small ears and its always a challenge trying to find earbuds that dont hurt my ear canals. I really struggled to find a headset that could be worn all day and could easily transition between music and calls, but this is it! Very Comfortable and excellent price. so far only using a 2 hr battery I been getting pretty much always a whole day from one. AND Ive ordered a size up, but maybe 2 sizes up would work. But theres an issue with that, too. The issue I have is that its way to freaking long, at a staggering 3 meters. By the end of a 2 hour rehearsal, my feet have swollen and that little extra room works for me. The cons I see with this seat is the padding is a bit firm, it does affect my ability to turn my handlebars, and I don?t like how the legs on the seat are splayed outwards, it seems like an uncomfortable and unnatural way for a young baby to sit (well really for anyone to sit like that), but I figured for the amount of time my daughter will be in the seat I?m not too concerned.