arrived four weeks after i ordered it, that was'nt a problem because i knew it was coming from china.i emailed pop gate(ships from hong kong) to let them know that there was a 'rattle' inside the computer,like something was loose. i asked if this was normal ,i didnt want to fit it on the bike and then find out it was faulty.they asked me to email a photo to get 'more detail'.what info they were gonna get from a photo is beyond my thinking. anyway four weeks later and not a word from them.dont expect any help from this company. update. ive fitted it on the bike and it works ok,regardless of the 'rattle' .